What action by some european leaders led to requests for the league of nations to ? they raised taxes to a very high level. they refused to repay debts. they invaded other countries to gain new territory. they captured soldiers from other countries.

One of the action that some European leaders did that led to requests for the League of Nations to help is: They invaded other countries to gain new territory

League of Nations will only be involved if there is a dispute between two nations that could led to war. In a territorial conflict between two countries, league of nations will be responsible for mediating the conflict and determining the true owner of that territory.