sentences:  Indeed, the third paragraph of article 109 is a clear clue of this initial orientation, as it states that a General Conference aimed at reviewing the UN Charter should be called from the tenth annual session of the General Assembly onward.But, the first attempt to reform the UN structure failed at the very 10th session, when the General Assembly, even though aware of the need of a reform, decided to postpone any decision.Various attempts to reform the UN took place during the decades but the core issues (Security Council reform, veto power, UN enforcement) failed to be properly addressed.