Mobile suit Gundam, the origin

"In a civil war, half of humanity has been wiped out, and Zeon's army of Zaku mobile suits have been the decisive weapon. With the Federation's first Gundam out of action, civilian Amuro Ray miraculously stumbles on a second unit. Now, in control of a machine with unparalleled destructive power, will Amuro's actions save the colony's survivors or destroy them?"--Amazingfantasycomics.com.