Unauthorized nuclear weapons,
Answer:
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The stalemate continued for so long in World War I because of technological advancement, new types of warfare, new types of weapons, incompetent generals, and the similarity of strength of both sides. These reasons contributed to the long stalemate and long bloodshed between Central and Allied Powers.
Well, I would have refrained more from attacking to not cause any troubles but assist my allies as they are fighting their enemies. Also, I would have gained more dominance over the small countries before going for the big ones.
What happened after the collapse of the Ming dynasty? The Manchus took over and created a new dynasty called the Qing. You just studied 10 terms!
