Explain what made the fighting in WWI so different than that of previous wars. Be sure to include new technologies, tactics, and innovations that made this war so much more deadly.

There were new technologies such as machine guns and submarines. Technologies that we only used by a few countries at the start. The development of tanks emerged during this period.

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.