Yes, if they believe that the cost of waging the war would outweigh anything that they might gain even if they win it. Why would any two countries wage a war ag

Yes, if they believe that the cost of waging the war would outweigh anything that they might gain even if they win it. Why would any two countries wage a war against each other if their governments knew that both countries economies (and most of their capacity to produce military material) would immediately collapse?