I’d imagine there’s fuck loads of jobs that could be done away from the front line for those not ‘fighting fit’ such as organising supplies, fixing up/cleaning up captured or damaged vehicles, helping refugees and those made homeless, rebuilding, building decoys, scrutinising satellite or audio intelligence, medical assistance etc. Some of this stuff could be done by foreign militaries without appearing as a hostile act towards Russia or putting people in the line of fire, would be a good bit of solidarity and would make people feel safer and like other countries have their back.