"Modern military conflicts have a rapid character. Decisions to create and train certain military units are taken within a limited timeframe. Taking into account these particular characteristics and the experience gained in Syria, the Armed Forces are introducing new forms and methods of combat training," Shoigu said.
Russia started its counter-terrorist aerial campaign in September. In mid-March, Russian President Vladimir Putin ordered Shoigu to start withdrawing most of Russia's military contingent from Syria, having accomplished its campaign objectives. Russia left a minor residual force in Syria.