CREATE TABLE table_28216 ("Unit" CLOB, "Commander" CLOB, "Complement" CLOB, "Killed" CLOB, "Wounded" CLOB, "Missing" CLOB)

What was the complement for the unit that had 3 off 37 men killed?
SELECT "Complement" FROM table_28216 WHERE "Killed" = '3 off 37 men'
SELECT "Complement" FROM "table_28216" WHERE "Killed" = '3 off 37 men'