NATO Secretary General Mark Rutte praised President Donald Trump for leading "crucial" joint U.S.-Israeli strikes that killed Iran's Ali Khamenei on Monday

Trump reportedly disappointed in U.K.'s hesitation on Iran campaign as European allies show mixed support for U.S.-Israel military operations against Tehran.

President Trump lashed out at Spain on Monday, saying that the U.S. would end trade with the European country after it said it wouldn’t allow the U.S. access to its bases as part of the Iran strikes.

Two NATO Joint Force Commands led by U.S. officers will transition to be European-led in an apparent answer to President Trump's calls for Europe to contribute more to its defense.

NATO Secretary General Mark Rutte praises President Trump for eliminating Khamenei and degrading Iran's capabilities as he claims European allies are supporting the effort.

Pentagon policy chief Elbridge Colby defends a new strategy proposal emphasizing burden sharing with U.S. allies to combat threats to Europe.

President Trump spoke with the leaders of Saudi Arabia, Qatar and the United Arab Emirates, and NATO Secretary-General Mark Rutte today, according to White House press secretary Karoline Leavitt. Trump also spoke earlier with Israeli Prime Minister Benjamin Netanyahu.