Take a look at Narva, Estonia. 93% Russian speaking and on the border with Russia. Russia was humiliated by Estonia in 2007 when they took down a famous WW2 Red Army memorial. They want payback. If Putin senses weakness now he might decide its time to roll tanks into a FSU NATO country. Estonia will invoke article 5. Then what? Shooting war with Russia or the end of NATO. It’s pretty easy to see where this is headed if Putin is not dealt with firmly now. That’s why this is so important. It’s about far more than Crimea.
Bingo