The Karma of Self-Defense

There is a conundrum that's been weighing on my mind ever since the war in Ukraine broke out. As a European who supports Ukraine I feel like it's my duty to contribute. There are all sorts of fundraisers popping up but most of them are for lethal weapons. So far, I've only donated towards humanitarian supplies for refugees on a couple of occasions. But I feel like I should do more. I'm somewhat familiar with the Buddhist teachings, karma and "turning the other cheek" as taught by Jesus himself. But I'm really struggling with this concept in a context of a war where one side, Russia, is really of force evil in the world (or the lowering of the global level of consciousness if you will). How can one just let that happen? If it were my country being attacked, how could I not defend it? I generally feel like this war's been dragging my level of consciousness down as I watch it very closely. I wonder what the Doc would have to say about this. After all, he did serve during WW2. Any insights on this matter would be appreciated.