Debates over Communist-era place names are roiling Ukrainians’ efforts to redefine their national identity.

Volodymyr Groisman, Ukraine’s new Prime Minister, owes his political career to President Petro Poroshenko. He will have trouble pushing through important reforms if his mentor does not allow it.

Poland heads for presidential elections tomorrow, which are likely to be a predictable—even boring—affair. What a nice contrast with the rest of Europe, and what a remarkable achievement.

Russia’s 2014 may have begun on a high note, but thanks in large part to a raft of poor decisions and miscalculations by its leadership, now finds itself in its most vulnerable position since Mr. Putin first took power fifteen years ago.

Ukraine’s Victor Yanukovich is stuck between a rock and a hard place. How he responds to the latest violence could fatally deepen rifts in an already divided country.