'..recent attacks by rebels armed by Russia violated a European-brokered ceasefire..'

<blockquote>'(Reuters) - Russian tanks and heavy military equipment have crossed the Ukrainian border in the last few days in breach of a European-brokered ceasefire agreed on Feb. 12, a senior U.S. State Department official said on Tuesday.'

- More Russian tanks, equipment cross Ukraine border: U.S. official, March 10, 2015</blockquote>


'..Russia violated a European-brokered ceasefire..'

<blockquote>'(Reuters) - The United States on Wednesday placed sanctions on eight Ukrainian separatists and a Russian bank, warning that recent attacks by rebels armed by Russia violated a European-brokered ceasefire in the war-torn country.'

- U.S. slaps sanctions on Ukrainian rebels, Russian bank, March 11, 2015</blockquote>


Context

<blockquote>'..more sanctions should Russia fail..'