<Tr> <Th> Country </Th> <Td> United Kingdom </Td> </Tr> <Tr> <Th> Branch </Th> <Td> British Army </Td> </Tr> <Tr> <Th> Type </Th> <Td> Expeditionary Force </Td> </Tr> <Tr> <Th> Role </Th> <Td> Field operations in France and the Low Countries </Td> </Tr>

Why were british troops in france in 1940