<Tr> <Td> Battle of Buna - Gona </Td> <Td> New Guinea campaign </Td> <Td> 16 November 1942 </Td> <Td> 22 January 1943 </Td> <Td> Allies </Td> </Tr> <Tr> <Td> Battle of Tassafaronga </Td> <Td> Guadalcanal campaign </Td> <Td> 29 November 1942 </Td> <Td> 29 November 1942 </Td> <Td> Japan </Td> </Tr> <Tr> <Td> Battle of Rennell Island </Td> <Td> Guadalcanal campaign </Td> <Td> 29 January 1943 </Td> <Td> 30 January 1943 </Td> <Td> Japan </Td> </Tr> <Tr> <Td> Battle of Wau </Td> <Td> New Guinea campaign </Td> <Td> 29 January 1943 </Td> <Td> 31 January 1943 </Td> <Td> Allies </Td> </Tr>

How many us soldiers fought in europe in ww2