A new offensive is under way in the separatist region of Donetsk. The MH17 crash scene, meanwhile, has become chaotic, with international investigators finding access limited or blocked outright by rebels.
President Petro Poroshenko defended his decision to resume military action, saying it was crucial to defend Ukraine's territorial integrity after a 10-day cease-fire failed to quell violence.
The EU-Ukraine trade pact that helped lead to the current crisis was signed today. Russia, antagonistic over the idea of closer Ukraine integration with Europe, warned of consequences.
A peace plan announced by Ukraine's president earlier this week may not get off the ground, as fighting continued with pro-Russian separatists in parts of the country's east.