George Washington was made the commander-in-Chief of the American forces at the Second Continental Congress in 1775. On July 3, 1775, Washington officially took command of the poorly trained and under-supplied Continental Army. After six years of struggle and despite frequent setbacks, Washington managed to lead the army to key victories and Great Britain eventually surrendered in 1781. Due largely to his military fame and humble personality, Americans overwhelmingly elected Washington their first president in 1789.