The Ussuri Cossack Host was created in 1889 on the basis of an unmounted half-battalion of the Amur Cossack Host and later reinforced with settlers from the Don Cossack Host, Kuban Cossack Host, and other Cossack hosts. The Ussuri Cossack Host headquarters was first located in Vladivostok and then in Iman (now Dalnerechensk). Its nakazny ataman (who was also the military governor of the region) subordinated to the Governor General of the Amur region, who, in turn, was the nakazny ataman of the Amur and the Ussuri Cossack Hosts.