Depending on how things go with what is widely believed to be an impending Russian invasion of Ukraine, with hostilities potentially spilling beyond that sphere

Depending on how things go with what is widely believed to be an impending Russian invasion of Ukraine, with hostilities potentially spilling beyond that sphere, I have to wonder if this will go into the history books as another historic strategic blunder for Germany. Surrendering a large amount of your domestic energy production, placing your fate in the hands of a hostile power is a real head scratcher.