We need to provide Ukraine with the weapons and other military assistance they need to defeat the pro-Russian separatists and secure their country. We need to impose true sectoral sanctions on key Russian industries, and our European allies should join us in that effort in order to make those sanctions as effective as possible. We need to increase NATO's military presence and activities in eastern Europe and the Baltic states, including enhanced missile defense capabilities, on an enduring, strategic basis. We need to highlight the human rights abuses and gross corruption of Russian officials and sanction those activities to the greatest extent possible. Most importantly, we need to recognize President Putin for what he is not an objective mediator or peace partner in the conflict in Ukraine, but rather a key party to that conflict who is driven by his ambitions to restore Russia's imperial domination of its neighbors.