One weapon has continually served the U.S. Armed Forces on land, at sea, and in the air for 105 years: the M2 heavy machine gun. First developed in 1918, the M2 has been in steady service throughout ...

Here’s What You Need to Remember: On the ground, the M2 was used by the U.S. Army and U.S. Marines. The Army used it as a light anti-aircraft gun on everything from trucks to halftracks to tanks. One ...