Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
Continuing coverage of Malaysia Airlines Flight 17. Plus, the latest on Mideast tensions.
(CNN) – Russian Prime Minister Dmitri Medvedev described the standoff playing out right now in eastern Ukraine as "on the threshold of a civil war."
In the same region, the Ukrainian military has now mobilized what its fledgling government is calling an "anti-terrorism" operation against pro-Russia protesters holed up in government buildings along the border.
The Ukrainians say they've now recaptured an eastern airport, in a move the Russian media says cost four people their lives and left two more injured.
Meanwhile, Google has been symbolically drawn into the conflict after updating its Google maps service, for Russian users only, showing what was once the Ukrainian peninsula of Crimea, as now being just another part of Putin's playground.