Write military facts first, and write whatever you want. Then analyze its background, time and place, and what international environment. For example, during the Diaoyu Islands incident between China and Japan, the United States sent an aircraft carrier into the vicinity of China. You should first write down the facts and when the aircraft carrier entered. Under this background, it clearly expressed the information of a US-Japan alliance, and so on. Finally, you can add some comments. Are the United States and Japan really allies when using the above list? Since ancient times, the relationship between the two countries has always been centered on interests. If China and Japan really go to war, will the United States really go to war? Probably not. Japan is just a pawn of the United States. When it is used up, it will be gone. Of course, these comments need your own feelings and experiences, plus your own rich military experience.