[6] About a year after the fort's construction, the Americans abandoned it, but in August 1814, Major William Lawrence and 160 men from the 2nd U.S. Infantry re-garrisoned it.[d] On the morning of 12 September, Percy landed Nicolls's force of 60 Royal Marines,[e][f][26][g][28] and about 60 Indians, together with a 5+1⁄2-inch howitzer,[h] about 9 miles to the eastward.[30] A further sixty Indians, under First Lieutenant James Cassell,[31] had been detached to secure the pass of Bon Secour 27 miles to the east of the fort, but they played no active part in the attack itself.[7] The American forces in Fort Bowyer, commanded by William Lawrence, consisted of 160 infantry, and a disputed number of cannon (reports range between 6 and 14 guns).[40] 1813 1814 1815 East Coast Great Lakes / Saint Lawrence River West Indies / Gulf Coast Pacific Ocean The Second Battle of Fort Bowyer was the first step in a British campaign against Mobile, but turned out to be the last land engagement between British and American forces in the War of 1812.[53] That night a 100 yard parallel was dug, at the loss of 10-12 men, which in the morning was occupied by soldiers who kept up such a musket fire on the fort that the enemy could not make any effectual reply.[60] While they were constructing their siege works, the British forces endured constant American fire and took light casualties, but continued undeterred.It had no casemates to protect the gunpowder magazine, or the wounded, and it lacked land facing ramparts, which would cost a lot of men to defend.[40] An alternative history from British sources explains that on 11 February, before opening fire, Lambert called upon the fort to surrender.[citation needed] With Fort Bowyer under control, Admiral Cochrane and General Lambert's next move was to take Mobile.[61] All British plans were cancelled when HMS Brazen arrived on 13 February, carrying news that the Treaty of Ghent had been signed on the previous Christmas Eve.[63] The final attachment of Mobile to the United States from the Spanish Empire was the only permanent exchange of territory during the War of 1812.