The Counter-Reformation (Latin: Contrareformatio), also called the Catholic Reformation (Latin: Reformatio Catholica) or the Catholic Revival,[1] was the period of Catholic resurgence that was initiated in response to the Protestant Reformation.
Source - Wikipedia
D. They led small, surprise attacks on British troops.
The Germanic tribes invaded and ultimately destroyed the Western part of the Roman Empire in the 400s. The invasions took place around 406 BC. The fall of the Western Roman Empire did not happen in a day but it took about a 100 years for the empire to fall. I hope the answer helps you.
Hitler annnounced an Anschluss with Austria March 12, 1938.