The United States is still assessing what exactly Russia will offer North Korea in exchange for its troops' involvement in ...

A U.S.-led statement approved by 10 of the 15 U.N. Security Council members condemned a recent North Korean intercontinental ballistic missile launch ...

The fall of the USSR and Cold War’s end reshaped U.S. and Russian nuclear strategies, reflected in the Strategic Arms ...

When he takes office in January, President-elect Donald Trump will inherit a raft of national security challenges, including ...

President-elect Trump is expected to deploy his trademark mix of belligerent threats and friendly relations with some of the world’s dictators as he seeks to break up the deepening ...

Russia's foreign ministry sees no grounds for talking about resuming dialogue on strategic stability and arms control with ...

But none of that has quite destroyed the world order. Trump will enjoy that privilege. He has already said he will cut a deal with Russia on Ukraine. The only way to do that is to stop assistance and ...

Some countries are modernizing and expanding their nuclear arsenals. Vladimir Putin has warned Russia may use nuclear arms if ...

South Korea's military says North Korea has fired multiple short-range ballistic missiles toward its eastern sea as the ...

Based on Donald Trump’s first term and his campaign statements, the United States will become less predictable, more chaotic, ...

The second Trump administration will face an emboldened and arguably more dangerous North Korean leader at a moment of acute ...

Washington’s message should be that, if Russia attacks a NATO country or uses a nuclear weapon, then the United States will ...