At NATO, Trump clashes with major allies
U.S. President Donald Trump sowed division with American partners before departing a NATO summit and leaving it to other leaders to put on a united front.
Intermediate-Range Nuclear Forces (INF) Treaty 1987
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Landmark U.S.-Russia arms treaty expires despite its past success
Experts said the demise of the INF Treaty will make the job of advocating for nuclear arms control far more difficult.
Trump to pull U.S. from conventional arms trade treaty
Less than five years old, the treaty covers everything from small arms to battle tanks and combat aircraft to warships. The United States is the world's biggest arms exporter.
Dispute over economic sanctions ends Trump-Kim nuclear talks
The leaders had contradictory accounts of why there was no agreement on dismantling North Korea's nuclear weapons.
Trump administration's go-it-alone policies rapped at Munich summit
Leaders criticized the breakdown in transatlantic relations from U.S. isolationism despite China's growing power.
Trump says he will sever nuclear arms control treaty with Russia
The U.S. will suspend participation in the Intermediate Range Nuclear Forces Treaty against nuclear-capable cruise missiles.
U.N. chief rallies nations to take action against a 'world of trouble'
António Guterres urged more diplomacy, climate ambition, technology uses, and focus on the U.N.'s 17 Global Goals.
Rise of populism and trade wars erodes international cooperation
The Trump administration's broadsides embolden nations with poor rights records and encourage attacks on journalists.
U.S. midterm elections will revise America's international outlook
Democrats vowed to redirect, block or investigate the U.S. president's foreign and domestic programs and priorities.
Experts bid to keep U.S.-Russia arms pact alive amid rising tensions
Arms control experts urged the Trump administration to reverse plans to withdraw the U.S. from a Cold War-era treaty.
Trump raises risk of arms race with U.S. exit from nuclear treaty
The Trump administration announced plans to withdraw the United States from the INF Treaty of 1987, and blamed Russia.
U.N. chief takes aim at the 'scourge of war' and weapons stockpiles
António Guterres launched a campaign underscoring the need for nations to scrap nuclear arsenals and other weapons.