Tough talk between Russia, Ukraine heats up Crimea stalemate
![Tough talk between Russia, Ukraine heats up Crimea stalemate](http://bloximages.chicago2.vip.townnews.com/tdn.com/content/tncms/assets/v3/editorial/4/9c/49ccb364-e225-5557-92b4-a7ac24eb480a/57ac37edc1109.image.jpg?resize=300%2C200)
MOSCOW (AP) — Ukraine put its troops on combat alert Thursday along the country's de-facto borders with Crimea and separatist rebels in the east amid an escalating war of words with Russia over Crimea.