How many Japanese planes did the pilot of this warhawk
shoot down?

five Japanese planes

They shot down five Japanese planes, including four — two Nakajima B5N2 torpedo bombers, a Mitsubishi A6M2 Zero fighter and an Aichi D3A1 dive bomber — by 2nd Lt. George S. Welch of the 47th Squadron, 15th Pursuit Group.

Explanation:

Hope it help

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.

i also think he is correct. i believe they came to washington to protest their rights.