<Tr> <Th_colspan="2"> Russo - Japanese War </Th> </Tr> <Tr> <Td_colspan="2"> Clockwise from top: Russian cruiser Pallada under fire at Port Arthur, Russian cavalry at Mukden, Russian cruiser Varyag and gunboat Korietz at Chemulpo Bay, Japanese dead at Port Arthur, Japanese infantry crossing the Yalu River </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> 8 February 1904--5 September 1905 (1 year, 6 months and 4 weeks) </Td> </Tr> <Tr> <Th> Location </Th> <Td> Manchuria, Yellow Sea, Korean Peninsula </Td> </Tr> <Tr> <Th> Result </Th> <Td> Japanese victory; Treaty of Portsmouth </Td> </Tr> </Table> </Td> </Tr> <Table> <Tr> <Th> Date </Th> <Td> 8 February 1904--5 September 1905 (1 year, 6 months and 4 weeks) </Td> </Tr> <Tr> <Th> Location </Th> <Td> Manchuria, Yellow Sea, Korean Peninsula </Td> </Tr> <Tr> <Th> Result </Th> <Td> Japanese victory; Treaty of Portsmouth </Td> </Tr> </Table>

When did russia go to war with japan