I'm currently watching the commemorations from London live on BBC1, and the ambassadors from the various countries of the ex-British empire countries (including Canada, Australia, New Zealand, India, South Africa, various Caribbean countries etc) are laying wreaths of poppies at the Cenotaph (the war memorial in the centre of london).

In order of precedence they lay their wreaths after the royals and the heads of the UK political parties, but before the heads of the UK armed forces.

I've seen Polish, Irish, and Dutch ex-soldiers today and probably other nations march in the past as well. Oh and the Gurkhas obviously (who are Nepalese, but part of the British Army).

So not only British soldiers get commemorated, maybe many people only remember the soldiers of their own country but that certainly doesn't lead to the conclusion that others aren't worth commemorating, only that people think of things that are close to home first.