[WJW]

Supplying the Ukrainians with food, water and weapons is a good start. Supplying them early warnings about troop movements from satellite imagery and cracked Russian communications would be a second, and it would be very deniable to boot. Sanctions will reduce the ability of the Russians to keep up the offensive in the mid-term, and there is indirect pressure to be exerted via the Chinese (who are miffed at the lack of warning they got from "close friend" Putin about his plans) and other diplomatic means. And finally there are of course all sorts of black ops you can do in an active warzone, similar to how Russia deployed "little green men" in Donetsk and Luhansk in 2014.

[bcrosby95]

> Supplying the Ukrainians with food, water and weapons is a good start.

Countries have been very public about doing this.

> Supplying them early warnings about troop movements from satellite imagery and cracked Russian communications would be a second, and it would be very deniable to boot.

They're pretty obviously doing this, Ukranian forces seem to have a lot of knowledge about Russian movements.

> And finally there are of course all sorts of black ops you can do in an active warzone

Something like 20k "volunteers" have gone to Ukraine to fight. Many of these people are likely not random couch surfers that decided to sign up.

I think the west is already doing almost everything you've outlined here. We just aren't in a position to know.

[tablespoon]

> They're pretty obviously doing this, Ukranian forces seem to have a lot of knowledge about Russian movements.

There are direct reports of this. IIRC, they're taking raw intelligence, scrubbing it to hide sources and methods (they think the Ukrainian government is full of Russian spies), and refraining from recommending specific actions based on it (because they feel like that would cross some stupid line and irritate the Russians too much). My understanding is that they've been able to get timely updates the the Ukrainians pretty quickly.