David Welna

The recent attacks on oil tankers amid rising tensions between the U.S. and Iran has happened before. In the 1980s, the U.S. needed Gulf oil. Today, not so much.

The annual defense policy bill has long been a paragon of bipartisanship. But not this year. For the first time in the Trump presidency, Democrats run the House Armed Services Committee.

The Trump administration approved arms sales to Saudi Arabia, United Arab Emirates and Jordan without congressional approval. There is bipartisan opposition to the deals and efforts to reverse them.

Despite the all-volunteer military, men in the U.S. still have to register for the draft when they turn 18. But the fairness of the system, and its very existence, are again being questioned.

Now that no jobs in the military are off-limits to women, a federal judge has declared mandatory male-only draft registration to be unconstitutional. Should women now be required to register as well?

White House National Security Adviser John Bolton spoke in Miami Wednesday about "security threats" posed by Cuba and Venezuela. The remarks came as the Pentagon plans to increase pressure on Venezuela.

Senior Turkish officials came to Washington to tamp down a growing showdown over their plans to install a Russian missile air defense system. They hope President Trump will waive mandatory sanctions.

WikiLeaks was already established for posting secret documents from anonymous leakers before its disclosure of U.S. government and military information in 2010. We have a timeline of key disclosures.

The impact of WikiLeaks on the world's politics, journalism and culture has been transformative. Here are the highlights.

History's most enduring multination military alliance turned 70 Thursday, but it was a milestone more notable for festering disputes than celebrations of harmony.

NATO, the world's most powerful military alliance, turns 70 this week. But is the alliance that was founded "to keep the Soviet Union out, the Americans in, and the Germans down" still necessary?

Turkey is buying 100 F-35 jet fighters from the U.S. — and an anti-aircraft missile defense system from Russia. The U.S. says it cannot have both.

Turkey is helping the U.S. build the F-35 jet fighter. It also insists on buying a Russian air defense missile system that could shoot that warplane down. The U.S. says the NATO ally can't have both.

Patrick Shanahan is America's longest-serving acting defense secretary. There is still no sign of a nominee to fill the post on a permanent basis.

Army Gen. Curtis Scaparrotti warns Russia's objective is to "undermine NATO solidarity and fracture the rules-based international order." His rhetoric is much harsher than President Trump's.

Despite a federal judge declaring it unconstitutional last week, the U.S. Selective Service System is still requiring only men to register for a possible military draft.

A federal judge says now that women can serve in combat, they should register with the selective service as men do. The current male-only registration, he says, is unconstitutional.

In remarks from the Rose Garden, President Trump on Friday declares a national emergency to secure funding for his long-promised southern border wall.

President Trump says he will sign a border funding compromise to avert a shutdown, but will also declare a national emergency in order to build a border wall. Also, Amazon cancels plans for New York.

A 1982 law empowers the secretary of defense to redirect military construction funds during a presidentially declared national emergency.