CREATE TABLE table_11793221_2 (killed VARCHAR, commander VARCHAR)

How many where killed under Major-General Jean Victor de Constant Rebecque's command?
SELECT killed FROM table_11793221_2 WHERE commander = "Major-General Jean Victor de Constant Rebecque"
SELECT "killed" FROM "table_11793221_2" WHERE "Major-General Jean Victor de Constant Rebecque" = "commander"