<Tr> <Td> Japan </Td> <Td> 39,623 </Td> <Td> 2,608 </Td> <Td> 11,613 </Td> <Td> 13,568 </Td> <Td> 11,818 </Td> <Td> 16 </Td> </Tr> <Tr> <Td> South Korea </Td> <Td> 23,297 </Td> <Td> 15,119 </Td> <Td> 296 </Td> <Td> 145 </Td> <Td> 7,736 </Td> <Td> </Td> </Tr> <Tr> <Td> Thailand </Td> <Td> 315 </Td> <Td> 46 </Td> <Td> 8 </Td> <Td> 232 </Td> <Td> 29 </Td> <Td> 0 </Td> </Tr> <Tr> <Td> Singapore </Td> <Td> 226 </Td> <Td> 6 </Td> <Td> 153 </Td> <Td> 31 </Td> <Td> 29 </Td> <Td> 7 </Td> </Tr>

Which of the following countries have 3 000 or more u.s. troops stationed in them