Hi There!
Question - What was Washington's strategy to win the war?
Answer - 4.to use the navy to prevent British troops and supplies from coming to America.
Why - George Washington main winning strategy was to attack vigorously over and over again with small attacks, that way the other side would get tired of fighting and fighting, when he would attack while they weren't ready. He also fought british troops that were carrying supplies so they army would not have enough or none at all to fight back and surrender.
Hope This Helps :)