In 1961 ondertekenden China en Noord-Korea de 'Sino-North Korean Mutual Aid and Cooperation Friendship Treaty', waarin China beloofde Noord-Korea militaire ondersteuning te geven in geval van een aanval op het land.
In 1961, the two countries signed the Sino-North Korean Mutual Aid and Cooperation Friendship Treaty, whereby China pledged to immediately render military and other assistance by all means to its ally against any outside attack.WikiMatrix WikiMatrix