Germany and Ukraine have reportedly agreed on the following.
Use of new weapons not to attack Russian land:
https://www.pravda.com.ua/eng/news/2023/02/5/7387966/
Fair enough. Let more and more Russians who do not like Putin burn more warehouses of arms, oil and gas then. Let the Russians attack Russia from within Russia internally shortly. It is what must be done.
Moreover, if Belarus is used in anyway – targeted strikes to wipe out Russian assets in Belarus must be authorized with lethal immediate deadly force.
Under always subject to changing terms of new modern warfare.