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(CNN) – Does the term "cease-fire" translate to something else in Russian or Ukrainian?
Because the truce between those two countries, that deal the U.S. helped seal just last Thursday, is already shattered.
Just as American troops arrive in Ukraine's neighbor Poland to rattle sabres at Russia with a brand new round of military exercises, Ukraine is relaunching its "anti-terrorist" operation against pro-Russia separatists in four cities in the eastern part of the country.
That move earned a sharp rebuke from Russia's foreign minister.
"If we are attacked, we would certainly respond. If our interests, our legitimate interests, the interests of Russians have been attacked directly, like they were in south Ossetia for example, I do not see any other way but to respond in accordance with international law. Russian citizens being attacked is an attack against the Russian federation," Russia's foreign minister Sergei Lavrov said.
He didn't define what he meant by Russia's "interests" any further. And when Russia-owned RT News aired the interview, it slapped the words "All You Need is Lavrov" on the bottom of the screen.
The truce is dead, but there were so many signs that it was doomed from the moment is was signed last week. Under the deal, pro-Russia separatists were supposed to vacate all the Ukrainian government buildings seized in recent weeks.
That didn't happen. They are still occupying buildings in all four cities targeted in that renewed military operation.
On Saturday, two tortured, beaten bodies were pulled from a river in Ukraine. One of them was a loyalist Ukrainian politician. Witnesses say masked men kidnapped him after he got into a confrontation at a local city hall.
On Sunday, still during the cease-fire, a gunfight broke out at a checkpoint run by a pro-Russia militia outside a city in eastern Ukraine. Three people were killed, and Ukraine and Russia blamed each other for the violence.
On Monday, with the truce hanging by a thread, armed men forced an eastern Ukrainian police chief out of his headquarters. He is reportedly being held now.
CNN senior international correspondent Arwa Damon reports on the latest developments from eastern Ukraine.