Today's Situation Room:
Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
New video shows MH17's fiery crash site
Video allegedly showing the MH17 fiery crash site is becoming a key piece of the investigation. Phil Black reports.
Ukrainian battle caught on camera
Russia has denied allegations that it has sent weapons inside Ukraine. Jim Sciutto reports.
NATO: Russian troops, tanks move to Ukraine
Ukraine prepares for fighting as Russian forces move weapons and troops into the country. Jim Sciutto reports.
Ceasefire crumbles in Ukraine
CNN's Jim Sciutto reports on the collapsing ceasefire between Ukraine and pro-Russian separatists. Full story
Accusations Russia behind new Ukraine violence
Wolf Blitzer talks to Daniel Baer, U.S. Amb. to Org. for Sec. & Cooperation in Europe about the recent violence in the region.
Ukraine seeks U.S. help to modernize Army
Ukraine's president Petro Poroshenko speaks to CNN's Wolf Blitzer on the country's plea for substantive military aid.
More of the interview:
Donetsk residents weary of shelling
The people of Donetsk, in Eastern Ukraine, struggle to go on with their lives because of the constant shelling.
Ukraine: "Full-scale invasion" by Russia
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.
Fighting in Ukraine rages on as Russia mounts thousands more troops on border
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.: Ukraine firing missiles at rebels
U.S. officials say they have observed Ukrainian forces firing short-range missiles near pro-Russian rebel positions. CNN's Barbara Starr reports.
U.S.: Photos implicate Russia in MH17
CNN's Barbara Starr reports on the evidence the U.S. says it has that implicates Russia in the MH17 plane crash.
About this Show
The Situation Room with Wolf Blitzer is the command center for breaking news, politics and extraordinary reports from around the world. Tune in weeknights from 5-7pm ET on CNN.
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