Near the bottom.

The One Mistake Putin Is Dying for Us to Make.

In fact, rather than look to the Chechnya analogies, Russia’s military and civilian leaders should ponder what happened in Nazi Germany on the eve of World War II. After the war, some top generals claimed that in 1938, when Hitler began threatening Czechoslovakia, they were planning to oust him if it looked like he was about to plunge Germany into a war with the West that it was not prepared for at that point. Whatever the accuracy of their accounts, any resolve they may have had evaporated when British Prime Minister Neville Chamberlain and French Premier Edouard Daladier acquiesced to the dismemberment of Czechoslovakia by signing the infamous Munich agreement that September.

For the West today, the lesson of Munich should come through loud and clear: It must remain firmly committed to helping the Ukrainians in their fight against the invaders, providing them with every piece of weaponry that can be turned against them. That is the only way to save Ukraine, and to prevent Putin from targeting his next victims. A new Munich-like agreement, which would allow Putin to cement his gains, would signal another colossal failure of nerve.

There is an equally important lesson for those Russians, especially in high circles, who can still think for themselves. It is also up to them to take action to stop a broader war, which will be the inevitable outcome if Putin is allowed to succeed in his current venture. Such a success would be a disaster not only for Ukraine and the West; it would be a disaster for Russia. They cannot afford to repeat the mistake of Hitler’s generals of letting an increasingly desperate leader stampede his army and his people over a cliff.