SELECT missing FROM table_name_89 WHERE killed = "0 off 0 men" AND wounded = "0 off 0 men" AND unit = "royal waggon train"
Berapa banyak unit kereta Waggon Royal yang hilang saat membunuh 0 orang dan orang yang terluka dari 0 orang?
CREATE TABLE table_name_89 (missing VARCHAR, unit VARCHAR, killed VARCHAR, wounded VARCHAR)