This is the Silver Star medal given to U.S military personnel. The Silver Star is the 3rd highest medal in military. The medal is awarded for gallantry in action against a U.S enemy. It was first awarded in 1932.
This is the Achievement medal. The Achievement medal was first awarded for contributions of Junior Officers. It was first awarded in 1961. Each military branch has its own version of the Achievement medal. The medal pictured is the U.S navy achievement medal.
This is the Commendation medal. The Commendation medal is awarded for acts of heroism in the military. It was first awarded to the U.S Navy and Marine Corps. It was first established in 1943.
This is the Bronze Star medal. The Bronze Star medal is the 4th highest individual military award. It could be awarded for acts of heroism, acts of merit, or meritorious service in a combat zone. It was first awarded in 1944.