The UN Security Council, the main seat of power in the present UN with the authority to take binding decisions and to implement them with force if necessary, was created with a fatal flaw in the veto power of its five permanent members. This has prevented the UN from achieving its essential purpose to maintain peace and security, resolve disputes between states, regulate armaments and prevent interstate conflict. All past proposals for Security Council reform have failed because Charter reform is also subject to the veto. This chapter proposes to replace the Security Council with an Executive Council under the authority of the General Assembly responsible for implementation, management and effective operation of the United Nations, with collective security implementation as only one of a range of executive functions. It would consist of 24 members providing a balanced voice for all member states. The veto would be eliminated, to be replaced by a two-thirds majority in important matters. The Executive Council could coordinate and where necessary consolidate the many existing bodies and functions in the UN system. Specialized offices for peace and security would be strengthened or created within the Secretariat.