That night, with Tubman leading the expedition, the Union gunboats quietly maneuvered, deftly avoiding each torpedo. The boats — the John Adams and the Harriet A. Weed — held Black soldiers as they moved up the Combahee, overrunning Confederate sentinels in a devastating raid. As the gunboats set anchor, Confederate guards fled. Union soldiers burned bridges, tore up railroads, set blaze to Confederate mansions and rice plantations.