defense, protection
衛 centers on guarding and shielding: defense against threats and protection of something valuable.
衛 combines 行 (to go, movement) with 韋 (leather, surround), suggesting patrolling or encircling for defense. The modern form is a simplified version of the older 衞.
The outer 行 suggests movement or a path, while the inner 韋 looks like a fortified enclosure. Picture guards marching around a protected area: 衛 means defense and protection.
For エイ, imagine an 'A'-team of elite guards providing defense: 'A' -> エイ, and they protect the perimeter.
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defense; defence; protection
Japan Self-Defense Forces; JSDF
(natural) satellite; moon
hygiene; sanitation; cleanliness; health
guard; convoy; escort
self-defense; self-defence
advance guard; vanguard
Imperial Guards
(security) guard; caretaker; janitor; doorkeeper; gatekeeper
Japan Defense Agency (became Ministry of Defense in January 2007)
nonaggressive defense (policy) (defence)
artificial satellite; man-made satellite
public health; public hygiene; sanitation
legitimate self-defence; legitimate self-defense
dental hygienist
Maritime Self Defense Forces (Defence)
Japanese Self-Defense Force official; Self-Defense Force official
Japan Air Self-Defense Force; JASDF
hygienic; sanitary
monarch's guards
communication satellite; Broadcast Satellite; BS
(Japanese) Defense Facilities Administration Agency (Defence)
Japan Ground Self-Defense Force; JGSDF