The Chechen rebel who claimed responsibility for the bombing of an airport in Moscow in January released a new video, in which he appealed for recruits for a total war against Russia, according to a post on hunafa.com, a militant website.

Chechen-born Islamist rebel Doku Umarov earned the moniker of the Russian Usama Bin Laden after he claimed responsibility for the Moscow metro attack that left 40 dead in March 2010.

Similar to the frustrations the U.S. has dealt with in Afghanistan and Iraq, these terror groups often get more loyal and secretive the closer one gets to the nucleus. In turn, usable information is often scant and unreliable.

“Jihad has become necessary for all of us,” Doku Umarov says, standing outside dressed in white camouflage according to the Global Post. “I call on you to activate jihad against the enemies of Allah.”

Umarov heads the Caucasus Emirate, a shadowy terror group that dreams of creating an Islamic state in Russia’s north Caucasus region and operates mainly in the wild back country of Dagestan and Chechnya, reported Pravda, a Russian newspaper.