The veto is not wielded as an ideological tool, but rather a tool of national interest like any other diplomatic tool. The recent case of Libya, whereby the veto power was not used by any of the P5, demonstrated the ability of the Security Council to align themselves to the cause of civilian protection. For this reason, it should also be noted that collective security is often indistinguishable from the national interests of the P5. The military might of each of the P5 members individually, and within separate groups, notably the UK and US axis within NATO, is such that the avoidance of disagreement is crucial to international peace. Even if the P5 did cast their vetoes for reasons of ideological self-interest, this cost is outweighed by the maintenance of unity that becomes ever more critical in the post-Cold War multipolar world.