In conjunction with the opening of Grant’s Overland Campaign, Maj. Gen. Benjamin Butler’s Army of the James, 33,000 strong, disembarked from transports at Bermuda Hundred on May 5, threatening the Richmond-Petersburg Railroad. On May 6, Hagood’s brigade stopped initial Federal probes at Port Walthall Junction. On May 7, a Union division drove Hagood’s and Johnson’s brigades from the depot and cut the railroad at Port Walthall Junction. Confederate defenders retired behind Swift Run Creek and awaited reinforcements.