<Table> <Tr> <Th_colspan="2"> Bonus Army Conflict </Th> </Tr> <Tr> <Td_colspan="2"> Bonus Army marchers (left) confront the police . </Td> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Th> Date </Th> <Td> July 28, 1932 </Td> </Tr> <Tr> <Th> Location </Th> <Td> Washington D.C., United States </Td> </Tr> <Tr> <Th> Result </Th> <Td> Bonus Army dispersed, demands rejected </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> Belligerents </Th> </Tr> <Tr> <Td> Bonus Army </Td> <Td> U.S. Army </Td> </Tr> <Tr> <Th_colspan="2"> Commanders and leaders </Th> </Tr> <Tr> <Td> Walter W. Waters </Td> <Td> Herbert Hoover Douglas MacArthur George S. Patton </Td> </Tr> <Tr> <Th_colspan="2"> Strength </Th> </Tr> <Tr> <Td> 17,000 veterans 26,000 others </Td> <Td> 500 infantry 500 cavalry 6 Renault FT tanks 800 policemen </Td> </Tr> <Tr> <Th_colspan="2"> Casualties and losses </Th> </Tr> <Tr> <Td> First day 2 dead; 1,017 injured, total unknown </Td> <Td> At least 69 police injured </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Bonus Army Conflict </Th> </Tr> <Tr> <Td_colspan="2"> Bonus Army marchers (left) confront the police . </Td> </Tr>

What did the veterans do to influence congress to pay the bonus