There has been some attacks by Russian fighter jets on Ukraine now:
https://www.pravda.com.ua/eng/news/2023/03/23/7394832/
Some ways to immediately fight Russia now by Ukraine and all East and West countries against Putin’s Russia:
- Use surface-to-air missiles (SAMs). SAMs are designed to shoot down aircraft, and they can be used to defend cities and other important targets.
- Use air-to-air missiles (AAMs). AAMs are designed to shoot down other aircraft, and they can be used by fighter jets to defend themselves and to attack enemy aircraft.
- Use drones. Drones can be used to identify and target enemy aircraft, and they can also be used to deliver bombs or other weapons.
- Use electronic warfare. Electronic warfare can be used to disrupt enemy communications and to disable enemy aircraft.
- Use cyberwarfare. Cyberwarfare can be used to attack enemy computer systems and to disable enemy aircraft.
Moreover, the EU and NATO must get more jets into Ukraine now.
F-16s namely.