At present, the international situation is grim, the big countries are constantly playing games, small countries are struggling to survive in the cracks, wars without smoke and invisible battlefields can all be used as excellent thesis topics. The social hot spots related to military affairs are, first of all, the Ukrainian crisis, and the secret wrestling and small-scale exchange of fire between the west and Russia are the main points that affect the world situation. The second is the vertical and horizontal cooperation of the Islamic State in the Middle East. If a big country does not act, it is difficult for a small country to protect itself. The United States tried to knock down Syria and Iran. Third, a series of confrontations in the South China Sea, our military aircraft approaching American military aircraft, a series of actions and so on.

History? The cause and influence of nanjing massacre. The Battle of Songhu and the Failure of Nanjing Defence War. Wuhan air battle, spy war before Wuhan battle, etc. Can be good materials. I hope I helped you.