<Tr> <Th> Result </Th> <Td> Decisive Cuban victory </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> Cuba </Td> <Td> United States Cuban DRF </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr>

What happened at the bay of pigs invasion in 1961 and why was it not successful