There is a military saying that armies have to fight the wars they can rather than the ones they wish to fight. It is a maxim that western leaders should consider in their confrontation with Russia.
Roughing up Vladimir Putin at the recent G20 summit in Brisbane may have given them a warm moral glow but did little to advance peace in Ukraine. Gesture politics does not substitute for a coherent strategy needed to address the most alarming threat to European security since the end of the Soviet Union.
Western leaders have been right to sanction Russia for unilaterally redrawing international borders. Russia’s annexation of Crimea and intervention in eastern Ukraine have recreated anarchy in Europe. Such aggression could not pass unanswered.