Memorial Day (US)
Refers specifically to the American holiday honoring fallen military personnel. Not used for similar holidays in other countries.
In the US, Memorial Day is the last Monday in May.
Refers to the anniversary of the end of a war, especially August 15 in Japan, not a day for fallen soldiers specifically.
A general term for a memorial day for the war dead, used for various observances, not limited to the US.
Compound of 戦没者 (war dead), 追悼 (mourning), and 記念日 (anniversary/memorial day). A direct translation of the English 'Memorial Day'.