Калмыцкое ханство
The Kalmyk Khanate reached its peak of military and political power under Ayuka Khan (ruled 1672–1724, khan 1690–1724). During his era, the Kalmyk Khanate fulfilled its responsibility to protect the southern borders of Russia and conducted many military expeditions against its Turkic-speaking neighbours. Successful military expeditions were also conducted in the Caucasus. The Khanate experienced economic prosperity from free trade with Russian border towns, with China, with Tibet and with Muslim neighbours. During this era, the Kalmyks also kept close contacts with their Oirat kinsmen in Dzungaria, as well as with the Dalai Lama in Tibet.