<Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> 8 battleships 8 cruisers 30 destroyers 4 submarines 3 USCG Cutters 47 other ships ≈ 390 aircraft </Td> <Td> Mobile Unit: 6 aircraft carriers 2 battleships 2 heavy cruisers 1 light cruiser 9 destroyers 8 tankers 23 fleet submarines 5 midget submarines 414 aircraft </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td> 4 battleships sunk 4 battleships damaged 2 other ships sunk 3 cruisers damaged 3 destroyers damaged 3 other ships damaged 188 aircraft destroyed 159 aircraft damaged 2,335 killed 1,143 wounded </Td> <Td> 4 midget submarines sunk 1 midget submarine grounded 29 aircraft destroyed 64 killed 1 sailor captured </Td> </Tr>

Where were the us carriers on december 7th 1941