As Putin increased and rearmed the Russian military, he has also embraced the concept of hybrid war, shifting much of the burden onto the shoulders of irregulars. In part thanks to that shift, Russia's military losses in 2014, the worst of the last five years, only reached 68.8 per 100,000 -- significantly less than the 88.1 service members per 100,000 the U.S. lost in 201 0, the last year for which data are publicly available from the Defense Casualty Analysis System.