Commentary The tragedy of Ukraine is that President Joe Biden’s appeasement and weak response was predictable. He’s turned out to be who this author said he would be in December 2020. Biden doesn’t comprehend deterrence, and neither does his party. I wrote here in “The Epoch Times”: “Biden represents a return to the weak-kneed diplomacy and hollow military of the Obama years. As far back as 1975 Biden condemned what he called the idea that the United States should ‘police the world’ by opposing communism. He has never comprehended the value of deterrence as a diplomatic tool. … Aggressive foes such as Vladimir Putin, Xi Jinping, Ayatollah Ali Khamenei, and Kim Jong Un pocket every concession they receive. … Aimless diplomacy and trade measures seldom subdue an aggressor, the most prominent example being the appeasement of Adolf Hitler in 1938, which did nothing to prevent him from starting World War …