Original sentence: After the battle Carleton decided that it was necessary to establish a post there to prevent white settlers from being ambushed by the Indians as they passed through.Men of the 5th California began building the fort, which they named Fort Bowie in honor of the regiment's colonel, George Washington Bowie.On July 4 the first units of the California Column reached New Mexico at Mesilla along the Rio Grande.With the Californians now approaching from the west, the last remnants of the Confederate army withdrew from New Mexico
Edited sentence: After the battle Carleton decided that it was necessary to establish a post there to prevent white settlers from being ambushed by the natives as they passed through.Men of the 5th California Infantry began building a fort, which they named Fort Bowie in honor of the regiment's colonel, George Washington Bowie.On July 4 the first units of the California Column reached Mesilla, New Mexico along the Rio Grande.With the Californians now approaching from the west, the last remnants of the Confederate army withdrew from Arizona