Here's what it looked like when US Marines hit the beach at Iwo Jima 74 years ago
The 35-day fight for the desolate island yielded 27 recipients of the Medal of Honor, along with one of the most famous photographs ever taken.
Paul Szoldra
Former Military & Defense Editor
Here's what legendary Marine General James 'Mad Dog' Mattis is really like, from people who served with him
We spoke with a number of people who served with Mattis to understand what the former four-star general is really like when he's in charge.
19 unforgettable quotes from legendary Marine Gen. Jim 'Mad Dog' Mattis, who just quit as Trump's defense secretary
The legendary Marine general led the Defense Department through a tumultuous two years. Here are the most unforgettable Mattis-isms.
Why Green Berets are the smartest, most lethal fighters in the world
US Army's Special Forces work in 12-man teams, known as an "A-Team," with each member having a specific job.
America's top general says China will probably be the 'greatest threat to our nation' by 2025
"The Russians, Chinese, and others are doing what I describe as conducting competition at a level that falls below conflict."
This is the Marine Corps' first female infantry officer
"I am proud of this officer and those in her class who have earned the infantry officer MOS," Marine Commandant Gen. Robert Neller said in a statement.
SOLDIERS SPEAK OUT ON KAEPERNICK: His protest 'makes him more American than anyone'
We asked military veterans about Colin Kaepernick. Their answers were quite surprising.
Why Green Berets are the smartest, most lethal fighters in the world
They call themselves the quiet professionals. Their official title is US Army Special Forces, and they are one of the most elite fighting groups in the world.
Facebook is using AI and thousands of employees to weed out terrorists
"Facebook is not a good repository for that kind of material for these guys anymore, and they know it."
A female Marine officer is expected to graduate the Corps' grueling infantry officer course
Since the course opened up, more than 30 women have attempted it.
Navy Surgeon General calls photos of Navy nurse flipping off newborn babies 'highly offensive'
A Navy nurse made a baby dance to rap music in one video and called some newborns "mini Satans."
Mattis hints at secret 'kinetic' military options for North Korea
According to Defense Secretary Jim Mattis, the Pentagon has a few tricks up its sleeve that wouldn't involve the decimation of Seoul.
Navy to christen the USS Tripoli — a ship that will pack helicopters, F-35s, and thousands of Marines
Once it hits the fleet around 2018, the Tripoli will join the USS America (LHA-6) on the high seas.
5 Marines in critical condition after their vehicle bursts into flames at Camp Pendleton
At least three Marines were being life-flighted to local hospitals.
There's an interesting reason South Korea is publicly talking about a 'decapitation unit' for Kim Jong Un
"The best deterrence we can have, next to having our own nukes, is to make Kim Jong Un fear for his life."
7 incredible stories of heroism on 9/11
Read the inspiring stories of people who heard the call of duty and went above and beyond to help save lives.
A convoy of ISIS fighters has been stuck in the desert for more than a week under fear of US airstrikes
The buses, loaded with about 300 fighters and 300 family members, were headed to Iraq after ISIS brokered a safe-passage deal with Lebanese Hezbollah.
The first 'battle' of World War II was a Nazi war crime
The first shot of World War II was fired before war was formally declared, and it epitomized Nazi brutality.
Mattis was asked why he agreed to serve under Trump — here's what he said
"I don't care if it's a Republican or Democrat, we all have an obligation to serve."
18 striking photos of the US military saving lives after Hurricane Harvey
It's pretty clear the US military is doing plenty of good, and likely saving many lives in Texas.