 As the Russians took control of the Caspian corridor and moved into Persian-ruled Dagestan, Peter's forces ran into mountain tribes.Peter sent a cavalry force to subdue them, but the Chechens routed them.In 1732, after Russia already ceded back most of the Caucasus to Persia, now led by Nader Shah, following the Treaty of Resht, Russian troops clashed again with Chechens in a village called Chechen-aul along the Argun River.