<Tr> <Th> Number of tests </Th> <Td> 5 </Td> </Tr> <Tr> <Th> Test type </Th> <Td> Underground tests </Td> </Tr> <Tr> <Th> Device type </Th> <Td> Fission / fusion </Td> </Tr> <Tr> <Th> Max . yield </Th> <Td> 43--45 kilotons of TNT (180--190 TJ) tested </Td> </Tr>

Who was president when 1st nuclear test was done