I'm actually powerless to do anything.
You have a lot of power, more than you realise.
For starters, few people attend Remembrance Day celebrations anymore and instead see this as another day for shopping. Turn up early and stay to completion. Chat with some vets, buy a round of cheap beers at the legion if you're well healed or let some vet buy you a drink and flirt with him or cry with him depending on the situation;
Go to the old folks home in your area. I guarantee there are half dozen Korean and WWII vets there no one visits anymore or cares about. It would mean the world to them if you took a little time and just sat down and listened to them. Remember, Cpl Cirillo is gone but life is for the living and these folks have been forgotten;
Write, badger and harass your local MP to keep our military commitments to a minimum. The soldier prepares for war but prays for peace. Sometimes we don't have a choice and have to send people to places like Afghanistan and sometimes we shouldn't be in places like Afghanistan if that makes any sense to you.;
Write a deployed soldier and ask him what he needs. For example I used to get people to send me batteries of all sizes and bubblegum. As much as possible as there was no such thing as too much. Batteries to give to locals so they could use flashlights and radios and gum for kids because a handful of bubblegum made those kids happier than any Canadian kid who just had a grand spent on him at Christmas. It's nice to know people back home care enough to help you out.
Volunteer with the local MFRC (military family resources centre) in his name or send a donation to the charity of his family's choice which should be on the obituary.
I think Cpl Cirillo would probably agree with me.