Our planet is the closest it has ever been to a global nuclear holocaust, the scientific community has warned over the past two years.

Iran's military power and influence has been badly weakened and clashes with Israel and the fall of Bashar Assad in Syria have left it reeling.

For weeks, Iranian officials have downplayed the fall of their ally in Syria. But an important general has offered a remarkably candid view of the blow to Iran, and its military’s prospects.

North Korea is gaining crucial military experience and equipment by sending troops to Russia, a U.S. official warned the United Nations, making the regime a growing threat to neighboring countries.

North Korea test fires a ballistic missile as Blinken visits Seoul, where he warned that Putin could provide Kim Jong Un with advanced space technology.

Her departure reflects a growing sense of anxiety within the Defense Department over the incoming administration and how it plans to treat the ranks of career civil servants and military flag officers.

In a wide-ranging exit interview, NPR's Mary Louise Kelly asks Central Intelligence Agency director William Burns about the resurgence of ISIS, and what's next for the intel community.

At the end of a tenure marked by war and division, the outgoing secretary of state defends his legacy on Gaza and Ukraine and says he’s made America stronger.

President-elect Donald Trump said at a news conference that he plans to make sweeping changes to U.S. policy when he's inaugurated on Jan. 20.

Eerie footage showed various surveillance shots of the communities along the border that Hamas terrorists were able to monitor and use for their eventual attack.

Under the proposed “comprehensive strategic partnership” between Moscow and Tehran, we are likely to see the Iran-Russia relationship strengthen over time, not just on a conventional level but in terms of Moscow’s support for Iran’s proxy forces.

North Korea is “significantly benefiting” from its troops gaining battlefield experience fighting alongside Russian forces as it makes them more capable of waging war against rivals South Korea and Japan, a US official warned the UN.