For international organizations or international treaties, whether a country chooses to join or withdraw, it is a matter that requires careful consideration and careful decision. However, the recent two U.S. administrations have jumped from side to side in the two states of "withdrawing from the group" and "joining the group", which is surprising.
As the main maker of international rules and an important builder of the international order after World War II, the United States is the initiator, founder and participant of many existing international organizations and international treaties. So, why does the United States, which has always been proud to be a "city on a hill" and a "beacon of democracy", betray its promises and betray its promises to international organizations and international treaties? The answer is not hard to find. In recent years, driven by the principle of "America First", the United States has pursued hegemonic acts such as unilateralism, protectionism and extreme egoism, and has long become a destroyer of the international order and a threat to world peace. In fact, whether it is "withdrawing from the group" or "joining the group", the United States' attitude towards international organizations and international treaties has always been "use it if it fits, and discard it if it doesn't fit."