What was a key reason for the island hopping campaign that defined most of the war in the Pacific ?

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.

eastern europe, the region of europe that is east of germany, was heavily influenced by the byzantine empire. through byzantine traders, and more importantly, the church, byzantium influenced the art, literature, and architecture of the region