Army of the Holy Roman Empire
In 1618-1629, the pike to shot ratio fluctuated between 1 and 2 muskets per pike for various Western European armies. 1631-1632 saw an increased proportion of firearms, with some formations being more than 80% gunmen. The standard in the Imperial Army of the Holy Roman Empire in 1641 was 66% muskets and 33% pikes. As pike-on-pike clashes became less common in field battles, so did armor. By 1660 body armor had mostly disappeared in pike and shot formations; the pikes themselves had also shortened, from 18 feet to 13 feet. During the English Civil Wars (1642-1651), both sides preferred 2 guns to 1 pike, though this ratio was flexible.