Tom Bowman

The Navy says commanding officers of the 2 vessels involved in separate collisions in the Pacific Ocean will face court-martial proceedings and possible criminal charges including negligent homicide.

What happened behind the scenes Saturday in the moments after the mistaken missile alert in Hawaii, and how is the federal government responding?

North Korea is known for its extensive military tunneling. Along with training thousands more troops, officials say the Pentagon is buying specialized gear such as night vision goggles.

U.S. troops have been in Syria fighting ISIS militants near the border with Iraq. More American diplomats and contractors are headed to Syria to help stabilize areas that have suffered years of war.

Defense Secretary Jim Mattis says contractors and diplomats will be sent to Eastern Syria to help stabilize the country. They will be protected by American troops already there. Mattis says that besides rebuilding, the increased American presence will make sure diplomatic efforts continue for the future of Syria. Both Russia and Syria have said U.S. forces should leave.

The Green Beret community is in a bitter internal debate over whether standards have been lowered for the U.S. Army elite force.

Army Gen. John Nicholson, commander of U.S. forces in Afghanistan, says more U.S. troops will be in harm's way by spring as they accompany Afghan troops into battle with Taliban forces. "We're going to win," the Nicholson says.

A C-2 Navy supply plane with 11 people aboard crashed in the Pacific while enroute to the Ronald Reagan aircraft carrier. Eight people were recovered in good shape and three remain missing.

The Air Force is under scrutiny for its failure to forward criminal records to the FBI. In particular, those regarding the conviction for domestic violence of the man who killed 26 people in Texas this week. Federal law prohibits such persons from buying firearms from a licensed dealer. Air Force Secretary Heather Wilson and Chief of Staff Gen. David Goldfein spoke about that issue on Thursday during a briefing about the future of the Air Force.

U.S. Marines have returned to Afghanistan's Helmand Province with a small training force. They are hoping a new Afghan general will lead his troops to success.

Democrats have won key races for governor in Virginia and New Jersey. Also, more details are emerging about the Texas shooter's past in the Air Force.

We have an update on the Air Force record of Devin Patrick Kelley, the man who shot and killed 26 people in Sutherland, Texas, including details on his time spent in a mental health institution.

A mistake allowed Devin Kelley to buy guns. Kelley opened fire on a church in Sutherland Springs. The Air Force failed to enter Kelley's assault arrest and conviction in a federal crime database.

The Navy's top officer, Adm. John Richardson, said an investigation has concluded that two destroyer accidents were largely the result of crews lacking the proper training to drive their ships.

The U.S. military is sending more soldiers and marines to Afghanistan to work with Afghan forces at small combat outposts. But the State Department is largely staying behind the gates and blast walls of its Embassy in Kabul and not heading out into the field. Officials say it's because of security concerns, but critics say it prevents the U.S. from keeping an eye on how the billions of dollars in aid is being spent and improving governance across the country.

The nation's highest military officer, Marine General Joseph Dunford, revealed more details today about the deadly ambush in Africa earlier this month where four U.S. soldiers were killed in Niger.

The U.S. is training and equipping both sides in the Iraq-Kurdistan stand-off along with Syrian opposition forces in the battle against ISIS and the Assad regime. It has created a tangled web with no clear end game.

In a wide-ranging interview, Gen. John W. Nicholson laid out some details of the new U.S. strategy in Afghanistan and explained how it will work. "We can move now in the right direction," he said.

Afghan President Ashraf Ghani laid out a specific goal — having his security forces control 80 percent of the country in four years. Is that doable?

The Navy's Surface Warfare Officers School in Newport, R.I., is the premier training facility for surface warship officers. In the past decade, junior officers have spent greatly reduced time there.