It has been nearly five decades since Chuck Hagel has been in touch with his platoon commander from the Vietnam War.
It wasn't until he became secretary of defense that he was finally able to track down Lieutenant Jerome Johnson.
CNN's Barbara Starr reports on the man who changed the face of war for Hagel, who happens to be the first enlisted combat veteran to lead the defense department.
The verdict is still out on whether Sergeant Bowe Bergdahl is a hero or a deserter, but should the military's response always be the same?
The U.S. Army's unwritten rule is to leave no soldier behind.
CNN's Tom Foreman takes a look at the U.S. military history of not leaving soldiers behind.
Outfront tonight with more insight on the showdown between the U.S. and Russia is journalist and author Carl Bernstein – who is also a CNN contributor – and Stephen Cohen, Professor Emeritus of Russian Studies at NYU and Princeton University and also the author of a cover story for The Nation this week called "Media Malpractice: Putin, Sochi and Ukraine."
Here to discuss Putin's mentality and what the U.S. can do to sway him is former U.S. Navy intelligence officer Colonel Cedric Leighton and author Keith Darden, who wrote "Resisting Occupation in Eurasia."
President Obama called a major ally Friday tonight to help bring Russian President Vladimir Putin back from the brink.
The White House just announced that the President spoke with German Chancellor Angela Merkel. Germany is the biggest buyer of Russian natural gas, making Merkel the most critical player when it comes to putting pressure on Putin.