Investing in Rheinmetall

Hey guys, I've been holding Rheinmetall for a year now and I've seen some good returns, but I was wondering what your views are on the stock in the longterm. The market cap is around 36 billion, but I still believe that this figure should be higher. The reasons I believe that the market cap should be higher is because of the pressure Europe has been getting from both Russia and now also the US. Europe believed that war was a thing of the past and neglected their defense sector, but the recent war in Ukraine has shown Europe that war is always imminent. Our good friend Trump is also pressuring Europe to work on their defense, by saying this like "Europe cannot rely on the US for security". I know that the stock has surged like 600% since the beginning of the Ukraine war and I know that, Rheinmetall stock is gonna have a volatile period when the war ends. But I still think that Rheinmetall will play a big role in the future for Europe. What's ur guys opinion on my view?