There’s lots of war plan on stopping massive soviet advances into Europe. That’s why there are us troops in Germany. People are waiting for this in the entire Cold War
First and foremost air strikes by stealth boomers on all Russian forward and home airfield including naval air bases. Reduce whatever air superiority Russia has.
Then strike all the bridges along all major rivers in eastern and Central Europe. Even if Russia force breakthrough they will be slowed down.
Then show of force of tanks against Russia tanks. Stealth boomer keep on striking fuel - including all refinery in Russian. Make them dry and thirty.
Key is keeping Atlantic open - 4 carrier battle group go north at the Baltic Sea and block Russian subs and surface fleets. This is vital for ammo and personal supply
Submarine penetrate into northern and Crimean naval base to destroy all fleet and submarine.
Send 2 battle group to harass them in eastern front.