The Associated Press: The United States now sees the Ukrainian rebels as a Russian force.

American officials briefed on intelligence from the region say Russia has significantly deepened its command and control of the militants in eastern Ukraine in recent months, leading the U.S. to quietly introduce a new term: “combined Russian-separatist forces.” The State Department used the expression three times in a single statement last week, lambasting Moscow and the insurgents for a series of cease-fire violations in Ukraine.

The shift in U.S. perceptions could have wide-ranging ramifications, even if the Obama administration has cited close linkages between the pro-Russian separatists and President Vladimir Putin’s government in Moscow since violence flared up in Ukraine a year ago.