Ussuri river, c.365 mi (590 km) long, formed by the confluence of the Ulukhe and Daubikhe rivers, Southern Maritime Territory, Russian Far East.
Ussuri river flows north to the Amur River at Khabarovsk, forming part of the Russia-China border.
The Ussuri abounds in fish, and it is used to transport timber. The Ussuri-Khanka lowland is a fertile agricultural region.
Armed border clashes between Soviet and Chinese forces occurred along the river in 1969 and 1972, leading to a military buildup.
In 1991 in a peace gesture, the USSR announced the transfer of some of the islands in the river to Chinese control.