George Washington gained control over Boston during the American Revolutionary War through a series of strategic military maneuvers and a well-planned siege, culminating in the successful American force's evacuation of British troops.
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Siege of Boston (1775-1776): After the Battles of Lexington and Concord in April 1775, colonial forces besieged the city of Boston, which was held by British troops. The American forces, primarily made up of militia and Continental Army soldiers, surrounded the city and cut off British supply lines.
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Fortification of Positions: Washington was appointed as the commander of the Continental Army in June 1775. He took command of the siege in July and focused on strengthening the American defenses around Boston. Washington's forces fortified key positions, including Bunker Hill and Dorchester Heights.
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Capture of Fort Ticonderoga: In May 1775, the Green Mountain Boys, led by Ethan Allen and Benedict Arnold, captured Fort Ticonderoga. The captured artillery from this fort was pivotal as it was transported to Boston and used to strengthen the American position.
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The Dorchester Heights Victory: The turning point came in March 1776. Washington planned a surprise operation to move heavy artillery to Dorchester Heights. On the evening of March 4, he and his troops managed to position cannons overlooking Boston, which put the British in a precarious situation.
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British Evacuation: Faced with the threat of American artillery and fearing an attack, British General William Howe decided to evacuate his troops. On March 17, 1776, the British withdrew from Boston, effectively giving control of the city to Washington and the Continental Army.
Washington's leadership, combined with the tactical decisions made during the siege, ultimately allowed him to gain control of Boston and laid the groundwork for further American military efforts in the Revolution.