As quoted from Squadron/Signal Publications " In Action books, despite the title of the genre, are books that trace the development of a single type of aircraft, armored vehicle, or ship from prototype to the final production variant. Experimental or "one-off" variants can also be included. Our first In Action book was printed in 1971".
The M-1 Abrams was designed to fight multiple Communist manned tanks in the forests of Europe. Even though the "Abrams" has been in combat, it has been limited to desert warfare. The M-1 was designed to be technologically superior and to provide the crew the best protection possible. During the M-1's career it has gone through many upgrades and modifications, both in technology, armor and armaments.