The RPF were in disarray by the time Kagame arrived, with troop morale very low. He later described his arrival as one of the worst experiences of his life; the troops lacked organisation following Rwigyema's death and were demoralised after their losses in the war. Kagame was well known to the RPF troops, many of whom had fought with him in the Ugandan Army, and they welcomed his arrival in the field. He spent the following weeks gathering intelligence with senior officers. By the end of October, with the RPF forced back to the Ugandan border, Kagame decided it was futile to continue fighting. He therefore withdrew most of the army from north-eastern Rwanda, moving them to the Virunga mountains, along the northwestern border. Kagame knew that the rugged terrain of the Virungas offered protection from attacks, even if the RPF's position was discovered. The march west took almost a week during which the soldiers crossed the border into Uganda several times, with the permission of President Museveni, taking advantage of personal friendships between the RPF soldiers and their ex-colleagues in the Ugandan Army.