衛 - defense, protection

nonaggressive defense (policy) (defence)

advance guard; vanguard

public health; public hygiene; sanitation

monarch's guards

guard; convoy; escort

Imperial Guards

(security) guard; caretaker; janitor; doorkeeper; gatekeeper

(natural) satellite; moon

Japan Self-Defense Forces; JSDF

self-defense; self-defence

(Japanese) Defense Facilities Administration Agency (Defence)

communication satellite; Broadcast Satellite; BS