Russia-Ukraine invasion: Major military build up underway, new developments | LiveNOW from FOX

The Kremlin said rebel leaders in eastern Ukraine asked Russia for military assistance Wednesday to help fend off Ukrainian "aggression" while Ukraine declared a nationwide state of emergency amid growing fears of an all-out invasion by Russian troops. The announcement from Moscow immediately fueled fears that the rebel request amounted to a pretext for war — a tactic that the West has warned about for weeks.