Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-6:30pm ET on CNN.
The people of Donetsk, in Eastern Ukraine, struggle to go on with their lives because of the constant shelling.
U.S. officials say 1,000 Russian troops have entered Ukraine as Ukrainian military slam Russia for a "full-scale invasion." CNN's Barbara Starr reports.
The battle for eastern Ukraine continues to rage on as government forces push further against pro-Russian separatists. CNN's Nick Paton Walsh reports on the ongoing violence - as Russia masses more troops on the border.
U.S. officials say they have observed Ukrainian forces firing short-range missiles near pro-Russian rebel positions. CNN's Barbara Starr reports.
CNN's Barbara Starr reports on the evidence the U.S. says it has that implicates Russia in the MH17 plane crash.
CNN's Jim Acosta reports on the two crises that president Obama's administration is simultaneously confronting.
CNN's Barbara Starr reports on new intelligence that may help officials uncover what really happened to flight MH-17.
Petro Poroshenko, Ukraine's "chocolate king," says he won the country's presidential election. CNN's Jim Sciutto reports.