Russia-Ukraine conflict shows how not all 'invasions' are equal

When Russian President Putin authorised troops to cross Ukraine's border into regions controlled by Russian-backed separatists, the White House initially stopped short of calling it an invasion.

When Russian President Vladimir Putin authorised troops to cross Ukraine's border into regions controlled by Russian-backed separatists, the White House initially stopped short of calling it an invasion. That changed on Tuesday, and key allies in Europe joined in saying Putin had crossed a red line. “This is the beginning of a Russian invasion of Ukraine," President Joe Biden said.
 

NATO Secretary General Jens Stoltenberg was equally explicit. “We saw last night that further Russian troops moved into the Donbas into parts of Donetsk and Luhansk,” he said Tuesday, referring to the two areas of Ukraine's eastern Donbas region controlled