Had the Alabamans broken through Chamberlain's 20th Maine Regiment there, Lee might have been able to fight a Battle of Penetration, and roll up the Union line.
Because if the Confederates won little round top, they could have slowly moved up the union line and could have completely destroyed it thus winning Gettysburg.
Little Round Top presented a natural raised gun platform overlooking the length of the Federal positions on Cemetery Ridge. If the Confederates had been able to get artillery on the hill, the entire...