As he did after the Wilderness and Spotsylvania, Grant now planned to leave the North Anna in another wide swing around Lee's flank, marching east of the Pamunkey River to screen his movements from the Confederates. He ordered (on May 22) that his supply depots at Belle Plain, Aquia Landing, and Fredericksburg be moved to a new base at Port Royal, Virginia, on the Rappahannock River. (Six days later the supply base was moved again, from Port Royal to White House on the Pamunkey.) If Grant had decided to move directly south, he would have been forced to cross three rivers, the Little River, the New Found, and the South Anna, minor obstacles that Lee would have to navigate instead.