Prime Minister Pedro Sanchez defended his decision to break with his NATO allies over increases in military spending and called President Donald Trump’s tariffs on Spain “doubly unfair.” ...

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

In medieval or ancient times, given his chaotic approach to foreign policy and national security, President Trump might have ...

The White House is scrambling to address growing questions about its military strikes on Iranian nuclear sites.