Putin will only be stopped when he overextends himself and he tries to go someplace that he is not wanted. Comparing Putin to Hitler thus far is historically flawed. Hitler invaded and attempted to dominate and seize countries where he was not wanted. He also attempted to liquidate entire populations. Putin thus far has confined his “aggression” to area that have been traditionally Russian and thus far it has been bloodless.
The comparison is accurate to Hitler in 1938 when he engineered the Anschluss of Austria and Sudetenland. In both cases the Germans were quite welcome by the population overall. That is the comparisons the Czechs are making as it is most meaningful to them.
Besides, it is a commonplace truth in East-Central Europe that while differences between USSR and the Third Reich exists, the similarities outweigh the differences as far as the Czechs, Poles and the Hungarians are concerned.
We should also remember that even in countries not ethnically tied to Germany, Hitler was not all that unwelcome, as he drove the Communists out. The fierce anti-German resistance in Russia, for example, is for the most part an artifact of Communist propaganda.
Although over the longer haul you are historically correct Putin’s
actions to this point are similar to those of Hitler in that both of
them claim their incursions were to protect ethnics of their
respective nations. And if that is what Hillary meant then although
I despise her I will grant her that minor point.