Why did soldiers join the crusade? who did the crusaders attack? was the crusade successful?

The solders joined the crusades because they were peasants looking for money and fame, or knights doing it for fun. The Christians(crusaders) and Muslims were fighting over the holy land. The crusaders attacked Muslim holy land and there were multiple crusades but the Muslims have always won putting the Christians in defeat.

the pogroms became known as kristallnacht, the "night of shattered glass," for the shattered glass from the store windows that littered the streets. the morning after the pogroms 30,000 german jewish men were arrested for the "crime" of being jewish and sent to concentration camps, where hundreds of them perished.