OVER the weekend, photographic proof emerged that the Russians used mur derous Chechen mercenaries to do their dirtiest dirty work in Georgia

Amid photos of the horrors of war, grateful South Ossetians and triumphant Russian troops, one series leapt out at me as a former intel officer: Bearded irregulars riding atop Russian-built armored vehicles (old BMPs, for the military-hardware buffs). The vehicles had been splashed with white lettering.

What did the scrawls announce to the world? These thugs proudly proclaimed that they're Chechens serving in the Vostok ("East") Battalion commanded by Badrudin Yamadaev - who shares a reputation for gangland violence with his brother, Ruslan

Last spring, mercenaries from the Vostok Battalion indulged in a bloody gangland shoot-'em-up in the city of Gudermes, near their home turf. The mafia-on-steroids brutality was too much even for the Chechens (which is quite a standard).

The province's puppet president publicly begged the Kremlin and its generals