The blunt message from two of Ukrainian President Petro Poroshenko’s most important allies marked another sign of European impatience with fighting that still engulfs the ex-Soviet nation five months after the signing of a broad truce.

The 13-point agreement reached in the Belarussian capital Minsk controversially guarantees three years of autonomy to militia-run districts of Ukraine’s industrial provinces of Lugansk and Donetsk. MORE