The U.S. confirms it will reduce its troop presence on NATO’s borders with Ukraine.

Lithuanian President Gitanas Nausėda says Russian military planes violated Lithuania’s airspace on Thursday evening.

The Pentagon says Defense Secretary Pete Hegseth’s plane made an unscheduled landing in the United Kingdom because a windshield cracked on a flight back to the U.S. from a NATO meeting and all aboard are safe.

Germany plans to send more than $2 billion in military aid to Ukraine amid concerns about dwindling Western support.

NATO has announced that its major annual nuclear exercise, "Steadfast Noon," is starting next week.

Donald Trump and Vladimir Putin have been trading barbs using the term "paper tiger," a phrase popularized by the Chinese communist leader Mao Zedong.

Russian President Vladimir Putin has warned the United States that supplies of long-range missiles to Ukraine will seriously damage relations between Moscow and Washington but will not change the situation on the battlefield.

NATO is ramping up aerial surveillance in the Baltic Sea.

Russia’s top diplomat is insisting to world leaders that Russia has no intention of attacking Europe.

Intrusions into NATO’s airspace blamed on Russia have reached an unprecedented scale, raising questions about whether the Kremlin is trying to test the alliance’s willingness to respond to a direct attack or divert its attention and resources from the war in Ukraine.

The U.S. military says fighter jets have intercepted Russian warplanes near Alaska again.

Estonia is extending a fence along its border with Russia and building anti-tank ditches and bunkers in preparation for a potential conflict with Moscow.

President Donald Trump says he believes Ukraine can win back all territory lost to Russia.

A senior Estonian military official said Russian pilots ignored signals from Italian jets during a 12-minute violation of Estonian airspace.

Estonia has summoned a Russian diplomat to protest after three Russian fighter jets entered its airspace without permission.

Poland is tapping into Ukraine's expertise in drone warfare by setting up joint military training and manufacturing projects.

Denmark is leading a military exercise with hundreds of troops from several European NATO members in Greenland.

A swarm of Russian drones flew last week into Poland in what officials there regarded as a deliberate provocation.

A Turkish court is expected to rule on whether to annul an internal leadership election of the country’s main opposition party over alleged irregularities.

Authorities say Polish and allied aircraft were deployed in a “preventive” operation in Poland’s airspace because of a threat of drone strikes in neighboring areas of Ukraine.

President Donald Trump says he believes the Russian-Ukraine war would end if all NATO countries stopped buying oil from Russia and placed tariffs on China of 50% to 100% for its purchases of Russian petroleum.

In the years since Russia invaded Ukraine, NATO has focused on defending its own territory first and resisted lower-level harassment from Russia, like acts of sabotage and intimidation.

NATO says it's bulking up its defensive posture on its eastern flank bordering Belarus, Russia and Ukraine with new equipment.

For more than three years, Ukraine has been battling Russian attack drones.

European leaders have expressed alarm over growing Russian hostility threatening their countries as Moscow’s forces pursue their invasion of Ukraine, concerns exacerbated after multiple Russian drones struck Polish soil.

President Donald Trump has offered an ambiguous initial response to Russia’s drone incursion into Poland’s airspace.

Multiple Russian drones crossed into Poland in what European officials described as a deliberate provocation, causing NATO to send fighter jets to shoot them down.

Confusion has emerged over Trump administration plans to halt some security assistance funding to European countries along the border with Russia.

Bulgarian authorities aren't investigating a suspected Russian interference operation involving a plane carrying European Commission President Ursula von der Leyen because they say the interference is now common.

NATO is working to counter Russian jamming of satellite navigation systems on civilian flights, according to the alliance's chief.

Finland's air force is moving to remove swastikas from its flags, partly due to the awkwardness it creates with Western allies.

NATO defense chiefs have discussed potential security guarantees for Ukraine to help end Russia's three-year war.

The second Oval Office meeting in six months between U.S. President Donald Trump and Ukrainian President Volodymyr Zelenskyy went off smoothly, in sharp contrast to their disastrous encounter in February.

European and NATO leaders will join President Volodymyr Zelenskyy in Washington for talks with President Donald Trump on ending Russia’s war in Ukraine.

Ukraine and its European backers are seeking talks with U.S. President Donald Trump in an effort to protect their security interests ahead of his summit with Russian President Vladimir Putin later this week.

NATO has started coordinating regular deliveries of large weapons packages to Ukraine, most bought from the U.S. Sweden said Tuesday that it would work with neighbors Denmark and Norway to provide $500 million worth of air defenses, anti-tank weapons, ammunition and spare parts.

The EU-U.S. tariff agreement sealed over the weekend has been described as a “dark day” for Europe and even a capitulation to American demands.

Turkey and Britain have signed a preliminary deal for the sale of Eurofighter Typhoon jets to Turkey.

Russia has launched one of its largest aerial assaults on Ukraine in months, targeting Kyiv overnight into Monday.

President Donald Trump is downplaying the possibility of sending Ukraine long-range weapons as Kyiv awaits an injection of U.S. weaponry that it hopes will help it beat back an intensifying Russian air offensive.

President Donald Trump has endorsed a plan for European allies to buy U.S. military equipment for Ukraine.

The Supreme Court is allowing President Donald Trump to put his plan to dismantle the Education Department back on track and go through with laying off nearly 1,400 employees.

NATO Secretary-General Mark Rutte is set to meet President Donald Trump this week on the heels of the U.S. leader announcing plans to sell NATO allies weaponry that they can then pass on to Ukraine.

President Donald Trump says the United States is selling weapons to its NATO allies in Europe so they can provide them to Ukraine as it struggles to fend off a recent escalation in Russia’s drone and missile attacks.

Danish Prime Minister Mette Frederiksen says Russia could pose a security threat to the European Union by the end of the decade and that defense industries in Europe and Ukraine must be ramped up.

World leaders are adapting strategies to manage U.S. President Donald Trump during his second term.

European Union leaders are calling for greater efforts to help meet Ukraine’s pressing military needs.

NATO’s summit in the Netherlands has been described as “transformational” and “historic.”.

President Donald Trump is insisting that U.S. strikes delivered a crushing blow to Iran’s nuclear program.

The U.K. says it will buy 12 U.S.-made F-35A fighter jets capable of carrying nuclear bombs and join NATO’s shared airborne nuclear mission.

President Donald Trump is insisting U.S. strikes delivered a crushing blow to Iran’s nuclear program.

NATO leaders have agreed on a massive hike in defense spending after pressure from U.S. President Donald Trump and expressed their “ironclad commitment” to come to each other’s aid if attacked.

U.S. President Donald Trump has wrapped his participation in the annual NATO summit, a gathering far chummier than the tense meetings of his first term.

A message from NATO Secretary-General Mark Rutte to President Donald Trump heaps praise on him as he heads to a two-day NATO summit.

President Donald Trump is in Europe for a two-day NATO summit laden with uncertainty over Iran’s response to U.S. airstrikes, the fate of Russia’s invasion of Ukraine and the future of U.S. troops based in NATO countries.

Officials say Russian drones, missiles and artillery have killed at least 26 civilians and injured more than 200 others in Ukraine.

Dutch authorities are investigating possible sabotage against the rail network after a power outage limited train services to and from the country’s main airport.

NATO Secretary-General Mark Rutte is praising U.S. President Donald Trump for making Europe “pay in a BIG way” on defense.

President Donald Trump injected some some uncertainty over whether the U.S. would abide by the mutual defense guarantees outlined in the NATO treaty as he headed to its summit.

The Dutch government says pro-Russian hackers have launched a series of denial-of-service attacks on municipalities and organizations linked to a NATO summit this week in the Netherlands.

NATO leaders are expected to agree by Wednesday that member countries should spend 5% of their gross domestic product on defense.

Prime Minister Pedro Sánchez says that Spain reached a deal with NATO to be excluded from a 5% of GDP defense spending target.

Hundreds of people are protesting against NATO and military spending and against a possible conflict with Iran, two days before a summit of the alliance in The Hague that is seeking to increase allies’ defense budgets.

At summits after Russia launched its full-scale invasion of Ukraine, NATO welcomed President Volodymyr Zelenskyy with open arms.

The success of a key NATO summit next week is hanging in the balance.

Spain has rejected a NATO proposal to spend 5% of gross domestic product on defense needs that’s expected to be announced next week.

Super-tight security is smothering The Hague around a summit of NATO leaders next week.

The European Union's top diplomat says Russia's massive military spending suggests that President Vladimir Putin plans to use his armed forces again elsewhere in the future.

The head of NATO plans to say the military alliance needs to increase its air and missile defenses by 400% to counter the threat from Russia.

President Donald Trump is tapping an Air Force fighter pilot with extensive experience as a commander in the Middle East to be the next head of U.S. European Command.

NATO Secretary-General Mark Rutte says that most allies endorse President Donald Trump’s demand that they invest 5% of gross domestic product on their security needs.

Ukraine’s president wants his Western backers to speed up deliveries of air defense systems to counter Russian missile strikes.

The U.K. will build new nuclear-powered attack submarines and create an army ready to fight a war in Europe as part of a boost to military spending.

Poland’s presidential election has come down to a stark ideological choice: a liberal pro-European mayor versus a staunch nationalist conservative.

Calin Georgescu, the controversial populist whose bid for Romania’s presidency last year resulted in the annulment of an election in the European Union and NATO member country, has announced he is stepping away from political life.

Representatives from NATO-aligned countries are wrapping up a gathering in Ohio to mark the Dayton Peace Accords that ended the Bosnian war 30 years ago.

Representatives of Balkan nations and Americans of both political parties agree on NATO's value in maintaining peace around the world.

German Chancellor Friedrich Merz has traveled to NATO partner Lithuania to inaugurate a German brigade meant to protect the alliance’s eastern flank in the face of mounting worries about Russia.

Estonia is warning that Russia appears willing to defend with military force its shadow fleet of aging tankers dodging international sanctions to keep oil revenue flowing.

NATO Secretary-General Mark Rutte says the organization’s procurement agency is cooperating with police investigating corruption and fraud allegations involving the purchase of military equipment.

NATO foreign ministers are debating a U.S. demand for a big increase in defense spending, President Donald Trump's administration wants to focus on security challenges outside of Europe.

NATO's secretary-general says the alliance's support for Ukraine remains “unwavering.”.

The Trump administration has expanded the power of adviser Elon Musk’s government-cutting team over the State Department.

The White House’s Office of Management and Budget has proposed gutting the State Department’s budget by almost 50%, closing a number of overseas diplomatic missions, and eliminating funding for nearly all international organizations, including the United Nations, many of its agencies and for NATO headquarters.

Bickering and chaos were on display in a presidential debate in Poland as eight candidates met to discuss existential matters for this country on NATO’s eastern flank — including fears of Russia over its war in Ukraine and concerns about President Donald Trump’s commitment to Europe’s security.

Britain’s defense minister is pressing his counterparts from around 30 countries to forge ahead with plans to deploy troops to Ukraine to police any future peace agreement with Russia.

Secretary of State Marco Rubio says the United States is revoking all visas held by South Sudanese passport holders, accusing the African nation’s government of “taking advantage of the United States.”.

European NATO allies and Canada say they will ramp up defense spending but are cool on U.S. demands for the size of their military budgets.

The chairman of the Senate Armed Services Committee criticized Pentagon “mid-level” leadership for what he says is a misguided plan to reduce the number of U.S. troops based in Europe.

U.S. Secretary of State Marco Rubio and the Trump administration’s new envoy to NATO are seeking to reassure wary NATO members of the U.S. commitment to the alliance.

Thousands of people have turned out to bid farewell to four American soldiers who died during a training exercise in the Baltic nation.

Secretary of State Marco Rubio is traveling this week to a gathering of top diplomats from NATO countries.

Questions are mounting in Canada and in Europe over whether big-ticket purchases of high-end U.S. weaponry are still a wise strategic choice.

The Trump administration’s warning last month that Europe must now take care of security in its own backyard raises troubling questions.

NATO Secretary-General Mark Rutte is praising President Donald Trump for motivating fellow transatlantic alliance members to step up defense spending and getting Russia to the negotiating table for talks about its grinding war against Ukraine.

Poland’s President Andrzej Duda has again called on the United States to deploy nuclear weapons to Poland as a deterrent to Russia.

A federal judge says she hopes to rule next week on whether to block President Donald Trump’s administration from banning transgender people from serving in the U.S. military.

NATO’s secretary general on Monday pledged the military alliance’s “unwavering” support for Bosnia’s territorial integrity after a series of Bosnian Serb separatist moves raised tensions nearly 30 years after the end of a bloody war.

European Union leaders on Friday downplayed skepticism from U.S. President Donald Trump about solidarity among NATO members.

President Donald Trump is expressing uncertainty that NATO would come to the United States' defense if the country were attacked.