During the civil war, key waterways in the south included

lost > < > < > < > < > < > < > > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > > < > < > < > < > > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > > > > < > < > < > < > < > < > > < > < > < > < > > < > < > < > < > < > > < > < > < > < > > < > < __a__t__l__a_s_|

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on april 6, 1917, the u.s. joined its allies--britain, france, and russia--to fight in world war i. under the command of major general john j. pershing, more than 2 million u.s. soldiers fought on battlefields in france.