China and North Korea boast an alliance forged in blood -- more than 130,000 Chinese troops, including the son of Mao Zedong, died defending the North during the Korean War -- but the relationship has always been an uneasy one.
China and North Korea boast an alliance forged in blood -- more than 130,000 Chinese troops, including the son of Mao Zedong, died defending the North during the Korean War -- but the relationship has always been an uneasy one.