On June 26, after the arrival of troops commanded by U.S. Army Colonel Decius Wadsworth, and U.S. Marine Captain Samuel Miller, Barney attempted a breakout. A simultaneous attack from land and sea on the blockading frigates at the mouth of St. Leonard's creek allowed the flotilla to move out of the creek and up-river to Benedict, Maryland, though Barney had to scuttle gunboats 137 and 138 in the creek. The British entered the then-abandoned creek and burned the town of St. Leonard, Maryland.