NATO calls for summit following Russian invasion of Ukraine

NATO's secretary general is calling for a summit of alliance leaders on Friday, following Russia's full scale invasion of Ukraine.

Jens Stoltenberg, the secretary general of the Western-led organization called the Russian invasion "deliberate, cold-blooded and long-planned."

He also said "Russia is using force to try to rewrite history."

Early Thursday morning, Russia launched a wide-ranging attack on Ukraine that including airstrikes and shelling as Russian tanks and troops crossed the country's border from Crimea.

An adviser to the Ukrainian president said that Russian forces had made it 6-12 miles into the Chernihiv region of northern Ukraine. The adviser noted that Kyiv is under "reliable protection" and will, in their estimation, not be so easily penetrable.

Thus far, the casualty number from the attacks is about 40, according to Ukraine. 

Members of the Ukrainian government say the Russians are specifically targeting air bases and various other military infrastructure and are asking for military-technical, and financial aid from countries around the world. In the U.S., Ukrainian politicians are asking Biden to impose even tougher economic sanctions on Putin.