There are many unit awards in the Army. In the Army especially.
Marine Corps is small enough and concentrated enough to practice a corps wide espirit de corps. While Army is deployed globally Marines are mainly on the US east coast, west coast. Okinawa. In other words, Army is so much larger and broadly stationed globally it is much more difficult for 'em to have uniform service wide espirit de corps. So Army focuses on units and their history, record of combat, their reputation as units and so on as units.
Ordinary Americans recognize Army distinguished units of division size such as the 82nd Airborne, 101st Airborne, the Big Red One (1st Infantry Division that went in first at Normandy), The Fighting 69th, 10th Mountain Division, Patton's Third Army which was characterized by armor.
More recently there's Delta Force, 5th Special Forces Group, Special Ops Command and so on. The Navy itself is huge also so there's Halsey's Third Fleet, the present day 7th Fleet in the western Pacific-Asia, aircraft carrier strike forces, the silent service of nasty subs, Navy Seals and so on and so on.
Marines are the Marines as in all of 'em. Virtually everything about USMC is about, well, the USMC. In other words very few ordinary Americans jump up and whoop for the 1st Marine Expeditionary Force per se. Or the 3rd Marine Division. Americans and others globally know any group of Marines coming at you is bad news for you, yet few Americans can think in specific terms about the 3rd Marine Expeditionary Force. Marines can recite through a squared lunch about any of 'em or all of 'em, but Americans recognize Jim Bowie at the Alamo and Marines planting the flag on Iwo Jima rather than readily recognize Marine units and their battles.
And here I'd thought you were in the Army -- Infantry besides and that you knew this happy stuff. Yet it sounds like your unit had citations you still don't know about which is a shame indeed because in the Army that's a big faux pas. Wouldn't it be something if you had to join the Marines as punishment for it.