Up until the 1970s, the international community generally considered the Kuomintang on Taiwan to be the legal representative of China, but acknowledgment of the nation of the People's Republic of China slowly increased. In 1954, the Republic of China and the United States signed the Mutual Defense Treaty between the United States of America and the Republic of China. In 1971, the United Nations acknowledged the People's Republic of China to be the sole legal representative of China (United Nations General Assembly Resolution 2758). The KMT government strengthened their "Han and the thief cannot both stand" (漢賊不兩立) stance and announced withdrawal from the United Nations. After this, the international position of the Republic of China slid to a large extent. In 1979, when the United States broke relations, it created an even more severe attack on the diplomatic plight of the ROC. In recent years, the ROC government has tried several times to apply anew to enter international organizations such as the United Nations and the World Health Organization, but, under the opposing side's powerful obstruction, there has been no success.