Patrick C. Roe, who served as an intelligence officer with the 7th Marine Regiment at Chosin, asserts that X Corps directly allowed the Eighth Army to hold the south and quoted MacArthur in corroborating his view. Yu Bin, a historian and a former member of the Chinese People's Liberation Army, states that while the destruction of Task Force Faith was viewed as the single greatest Chinese victory of the war, ultimately the PVA 9th Army had become "a giant hospital" while failing to destroy the numerically inferior UN forces at Chosin as planned. Zhang Renchu, whose 26th Corps was blamed for allowing the X Corps to escape, had threatened suicide over the outcome, while Song Shilun offered to resign his post.