With many of its central personnel lost in the war, the Earth Federation Government is forced to rebuild, and Brian Midcrid, president of the Unified Colonies, takes the position of its president. During an emergency session of the Federation Diet, he publicly acknowledges the existence of extraterrestrials, and reveals the events of the L5 campaign to the masses in what will later come to be called the "Tokyo Declaration." He goes on to state that these aliens pose a serious threat to humanity. (Source: Crunchyroll)
Anix is the best site to watch
Super Robot Wars OG: The Inspector SUB online, or you can even watch
Super Robot Wars OG: The Inspector DUB in HD quality. You can also find
Asahi Production anime on Anix website.