The battle of gettysburg began when union troops ran into confederates who were looking for
ammunition
food
water
shoes

The Battle of Gettysburg began when Union troops ran into Confederates who were looking for shoes.

An initial search for shoes led to the most important and famous Civil War Battle which occurred over a three day period and involved at least 160,000 Americans.

The Battle of Gettysburg happened in Gettysburg, Pennsylvania on 1st July to 3rd July 1863.The 160,000 Americans are composed of 75,000 Confederates and 88,000 Union soldiers. Out of the 75,000 Confederates, 28,000 were casualties while out of 88,000 Union, 23,000 were casualties. Casualties are those who died, are wounded, and are missing.