War is the only option to stop Russia from annexation of Crimea, sanction don't work because Russia won't return Crimea to Ukraine control and to kick Russia navy out of the Baltic Sea. Economic santion on Russia but Russia can still continue to trade with other nation, how effective economic sanction will be. Russia mainly know for exporting natural resource and military export, Russia won't suffer much under any kind of sanction, heavy sanction also hurt E.U because of bilateral trade between the Russian and E.U with E.U economy just barely regain it strength from E.U own economy recession. Would E.U cut their own nose to despite it own face?