 Complete the following phrase:  Each US Army armored division was allocated an anti-aircraft artillery AAA battalion of four companies, each equipped with eight M15 CGMCs and eight M45 Quadmount-equipped M16 MGMCs. At corps and army level, each AAA battalion was equipped with thirty-two of each vehicle. After first seeing action in the Allied invasion of Italy, the M15 and M15A1 served through the rest of the Italian Campaign, the 