I'm sure other countries have days set aside to honor their military members who have passed either in combat or by natural causes.
Although this is traditionally an American holiday, it's hard if not impossible to not include and acknowledge the sacrifices, bravery and valor of Canada, England, Australia, New Zealand, South Africa, Brazil, Mexico, Greece, Norway, Netherlands, India, Belgium, Luxembourg. That's a good number of countries that Fought on the side of the allies in WW2. These countries lost good men and women in the struggles of WW2 as well and well deserving of honors, acknowledgments and remembrances.
To be sure, Germany and Japan were also good friends after WW2 and also lost good people in the causes of freedom.
So, to the armed forces of your respective countries.