by Pat Buchanan For us, the crucial concern in this Ukraine-Russia war is not who ends up in control of Crimea and the Donbas, but that the U.S. not be sucked into a war with Russia that could escalate into a world war and a nuclear war. To President Volodymyr Zelenskyy and Ukraine, Crimea and the Donbas are national territories whose retrieval justifies all-out war to expel the invading armies of Vladimir Putin’s Russia. Yet, who controls Crimea and the Donbas has, in the history of U.S.-Russian relations, never been an…