What was the religious reason for the crusade

The Crusades were a series of religious wars initiated, supported and sometimes directed by the Latin Church in the medieval period, especially the campaigns between 1096 and 1271 in the Eastern Mediterranean aimed at recovering the Holy Land from Islamic rule.

Religious fervour was difficult to direct and control even though it enabled significant feats of military endeavour. Political and religious conflict in Europe combined with failed harvests reduced Europe's interest in Jerusalem. The distances involved made the mounting of crusades and the maintenance of communications difficult.

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explanation:

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.