My most effective way to protest is buying bitcoin to defund the war machine. I am 25% in it for the gains but 75% in it to defund wars and removing my money from war funding.
Most people don't understand or don't care about what is going on around the world because it's not their kids, brother, sisters dying on either sides of the wars they are isolated from it so far away.
But this may escalate at some point to redirect towards them or be forced to go fight overthere and get killed.
We are all interconnected, a world based on free trade and market compatition is a way better world run war fighters misleading everybody to suicidel missions.