The main focus city of the Crusades was Jerusalem. The idea was that it was Christian territory, or at least should be Christian territory, and they always went to reconquer it. The fourth Crusade never made it to Jerusalem because they were busy sacking Constantinople which had a lot of troubles due to constant wars of the Byzantine Empire.
The movement was caused by people who wanted change. The goals they had helped they reach the goal
Many Mesopotamian states engaged in warfare mainly because "<span>a. They needed to gain access to raw materials through force", since these materials were limited in nature.</span>
The number of soilders killed in ww2 decreased in vietnam war because their soilders died not because of war but were lost in the jungle or could not survive in the harsh condition of vietnam's nature.and the rate was approximately same as because many soilders died there also by illness and fatigue.