How can long-term peace be achieved in Ukraine and Europe against Russian aggression?

According to General Sir Richard Shirreff, the only way to secure long-term peace in Ukraine and Europe against a revanchist Russia is through a strong NATO deterrent presence from the Baltic to the Black Sea. This requires incorporating Ukraine as a NATO member and developing a unified strategy to support Ukrainians in defeating Russia. Shirreff emphasizes that anything less than this comprehensive approach is already causing the unraveling of European security, which could lead to catastrophe. He argues that decisive action is necessary as Russia is determined to rebuild its empire, and only through collective NATO strength can this expansionist agenda be effectively stopped.