No we shouldn't be fighting ISIS with out Turkish ground troops. This fight is about Russian gas sales that heat Eastern Europe. If Turkey controlled syria rather than the Russians, then the Egyptians and Israelis would be able to sell Saudi gas through a new series of pipelines being built and destroyed for the last 10 years. This would spell doom for the Russians. The Turks know this and are playing both sides. Until the Turks put skin in the game we will never ever be able to take Syria. Our planes have done enough damage for no change to occur. Enough is enough. Let's have clarity and admit that we don't have the geopolitical war won. The physical war is a brutal evil waste of life history and money.