the united nations was established so that it could resolve conflicts between nations by\nlaunching military…

Answer:

None of the above options are correct. The United Nations aims to resolve conflicts between nations through peaceful means such as diplomacy, mediation, and negotiation rather than the aggressive actions listed (launching military attacks, forming blockades, imposing sanctions which are more coercive measures, and occupying border - countries). If we must choose from the given options, the closest might be imposing sanctions as it is a non - military measure sometimes used by the UN to influence a nation's behavior in a conflict situation, but it is not the primary or most peaceful way of conflict resolution.

Brief Explanations:

The UN's main goal is peacekeeping. Military attacks, blockades, and occupations are aggressive actions. Sanctions are a last - resort coercive measure, not the main way of conflict resolution. The UN prefers diplomatic and peaceful means.