Two days later was fought, outside Boston, the heroic battle of Bunker's Hill, and on the 21st Washington set out from Philadelphia to the seat of war, where he laid a strict siege about Boston, with a view to forcing the British to come out. An English ship having bombarded the American port of Falmouth, an act was passed by the General Court of Massachusetts, encouraging the fitting out of armed vessels to defend the coast of America, and granting letters of marque and reprisal. In October a conference of delegates was held, under Washington's presidency, of which Benjamin Franklin was a member, with regard to a new organisation of the army; and a new force of twenty-two thousand was formed, every soldier being enlisted for one year only.
Montreal had been captured by an American expedition, and Washington was now looking forward to equal success in an expedition against Quebec. He was further encouraged by the capture, by one of his cruisers, of a brigantine laden with munitions of war, including a huge brass mortar. His wife joined the camp before Boston, and the eventful year was closed with festivities.
But the gallant attempt on Quebec, in which Montgomery fell, was frustrated, and the siege of Boston dragged on uneventfully, until the Americans, in March, seized Dorchester Heights, and made the town no longer tenable. On the 17th there were in Boston Harbor seventy-eight ships and transports casting loose for sea, and twelve thousand soldiers, sailors and refugees, hurrying to embark. The flag of thirteen stripes, the standard of the Union, floated above the Boston forts, after ten tedious months of siege.
The eminent services of Washington throughout this arduous period, his admirable management by which, in the course of a few months, an undisciplined band of husbandmen became soldiers, and were able to expel a brave army of veterans, commanded by the most experienced generals, won the enthusiastic applause of the nation. A unanimous vote of thanks was passed to him in Congress.
Despatches from Canada continued to be disastrous, and the evacuation of that country was determined on in June, 1776. The great aim of the British was now to get possession of New York and the Hudson, and to make them the basis of military operations. While danger was gathering round New York, and its inhabitants were in mute suspense and fearful anticipations, the General Congress at Philadelphia was discussing with closed doors the greatest question ever debated in America. A resolution was passed unanimously, on July 2, "that these United Colonies are, of right ought to be, free and independent States."