Question: Tell me the place of action for Sergeant rank and 5th Company, 2nd Marines unit
SQL: SELECT "Place of action" FROM "2-1202355-3" WHERE "Rank" = 'Sergeant' AND "Unit" = '5th Company, 2nd Marines';

Question: Name the service for 7th Marines rank of Sergeant
SQL: SELECT "Service" FROM "2-1202355-3" WHERE "Unit" = '7th Marines' AND "Rank" = 'Sergeant';