Why would I support a NATO invasion of Russia RIGHT NOW? They have thousands of nuclear weapons and a nuclear triad. What I support is giving Ukraine long-range missiles to strike deep inside of Russia, and F-15EX & F-16V plus Abrams Sep 1 to 3, but not a nuclear holocaust.
Now as for the long term, yeah I do support an invasion of Russia, and China. Eventually, US AI, US-directed energy weapons, and layer missile defenses will render Russian and Chinese WMDs irrelevant, and then we do an invasion of Russia, then after winning that China.
As for Iran, it depends. IF they turn into a Persian democracy, I don't care what their politics is, I wouldn't support an invasion, but if the Ayatollah,s, and Mullahs still control it, then I would support a Robo-Cop-like invasion with hunter-killer drones, and AI-manned vehicles.
I don't support invading Vuvlezula. Syria is free real estate to regime change.