I think Europe has pretty clearly shown (by their actions) that they are mobilizing the machinery of war. They don't have (many) people currently in harms way, we are content letting Ukrainians fight it out for now, but the machine is humming.

The machine of war isn't monolithic, and what you're seeing is that certain parts of it (like shutting down opposing propaganda) can be started without other parts (like literal fighting) being needed.