If the Ukraine situation goes up in smoke, the Mediterranean could become a front line between Russian and NATO navies. NATO has three carriers there. The largest is the US Navy’s Nimitz Class supercarrier USS Harry Truman, followed by the Marine Nationale’s Charles de Gaulle. Italy’s Cavour makes up the group. They are now facing two Russian Navy surface groups led by SLAVA Class cruisers, and conventional submarine ops out of Syria.
Russia of course has a particular focus on anti-carrier capabilities. With the historical carrier imbalance vis-à-vis the US Navy, Russia has developed a wide range of powerful anti-ship weapons.