. The British occupied the town of Castine and most of eastern Maine for the rest of the war, governing it under martial law and re-establishing the colony of New Ireland. The Treaty of Ghent returned this territory to the United States. When the British left in April 1815, they took £10,750 in tariff duties from Castine. This money, called the "Castine Fund", was used to establish Dalhousie University in Halifax. Decisions about the islands in Passamaquoddy Bay were decided by joint commission in 1817. However, Machias Seal Island had been seized by the British as part of the occupation and was unaddressed by the commission. While kept by Britain/Canada, it remains in dispute to this day. Chesapeake campaign The strategic location of the Chesapeake Bay near the Potomac River made it a prime target for the British. Rear Admiral George Cockburn arrived there in March 1813 and was joined by Admiral Warren who took command of operations ten days later. Starting in March a squadron under Rear Admiral George Cockburn started a blockade of the mouth of the Bay at Hampton Roads harbour and raided towns along the Bay from Norfolk, Virginia to Havre de Grace, Maryland. In late April Cockburn landed at and set fire to Frenchtown, Maryland and destroyed ships that were docked there. In the following weeks he routed the local militias and looted and burned three other towns. Thereafter he marched to iron foundry at Principio and destroyed it along with sixty-eight cannons. On 4 July 1813, Commodore Joshua Barney, an American Revolutionary War naval officer, convinced the Navy Department to build the Chesapeake Bay Flotilla, a squadron of twenty barges powered by small sails or oars (sweeps) to defend the Chesapeake Bay. Launched in April 1814, the squadron was quickly cornered on the Patuxent River. While successful in harassing the Royal Navy, they could not stop subsequent British operations in the area. Burning of Washington In August 1814, a force of 2,500 soldiers under General Ross had just arrived in Bermuda aboard , three frigates, three sloops and ten other vessels. Released from the Peninsular War by victory, the British intended to use them for diversionary raids along the coasts of Maryland and Virginia. In response to Prévost's request, they decided to employ this force, together with the naval and military units already on the station, to strike at the national capital. Anticipating the