Ukraine has declared a 30-day state of emergency in light of a feared invasion by Russia in the country’s east, the secretary of the security council said on Wednesday. The move could mean Ukrainians would be ordered to stay home or placed under curfew, Oleksiy Danilov said. It is the latest response to Russia’s decision to recognize two separatist regions in eastern Ukraine as independent countries and authorize Russian military forces to enter to prevent what the Kremlin insists is attempted genocide against ethnic Russians there. It is yet to be officially confirmed that Russian troops have…