The United States is entitled to take measures to protect its citizens.  In a nuclear world, it is impossible to dismiss another nation’s instability as “their problem.” If a government with nuclear weapons collapses, irrational actors (such as ideological terrorist groups) may attain control of such weapons. Nuclear war has the potential to destroy all of humanity- even in the case of a limited conflict. Alexis Madrigal of Wired Science explains, “Imagine that the long-simmering conflict between India and Pakistan broke out into a war in which each side deployed 50 nuclear weapons against the other country’s megacities […] Beyond the local human tragedy of such a situation, a new study looking at the atmospheric chemistry of regional nuclear war finds that the hot smoke from burning cities would tear holes in the ozone layer of the Earth. The increased UV radiation resulting from the ozone loss could more than double DNA damage, and increase cancer rates across North America and Eurasia.” [1] Thus it is impossible for the US to turn a blind eye to conflicts and instability in other regions. Furthermore, the stakes of nuclear fallout are so high that very few chances can be taken. Even if the chance of a conflict ending in nuclear war is very small, the damages that would occur are so great that even small chances cannot be taken. Thus the US military is justified in intervening in international conflicts because such intervention can be decisively linked to the welfare of its citizens.  [1] Madrigal.