Is It Still Possible to Win Wars?

Today it has certainly become much more difficult to wage wars and practically impossible to solve problems by war. Wars nowadays take place in public: In front of the tv camera, they are observed by human rights ngos and are linked to parliamentary hearings. If one can say that wars were decided to 90% on the battlefield in former times, today they are only decided to 10% on the battlefield.  Considering the multitude of issues in today’s international relations, it has become very difficult to formulate clear goals for any war, therefore raising the question, whether wars still can be won