Komuggal War

The Komuggal War is the latest conventional war to have taken place in the Galaxy. For the Komuggal, it is known simply as Alr'd'shrki, which can be translated as the Invasion or the Contact. The war primarily opposed the Terran Federal Republic and Komuggal Republic, with the former being supported by the Dominions. The war lasted from October 2696 to June 2698, when the Komuggal surrendered and became a Dominion. 
Despite the Komuggal never having encountered the wider galactic community, they had already fought and won two wars against two neighbouring species. This gave them significant military experience and made them wary upon first contact with the Terrans, which ultimately resulted in Terran aggression. The Komuggal's independent discovery of graviton drives gave them a substantial advantage compared to most species. Nevertheless, the Federal Navy retained a significant advantage and was able to secure space superiority within a year. As such, most of the war occurred on planets, where the Federal Army encountered some difficulties. Importantly, mechs proved decisive in a number of occasions which raised interest in acquiring more in the Department of Operations. The Komuggal ultimately surrendered after their capital city was seized. Due to the short duration of the conflict and Komuggal willingness to surrender in face of overwhelming odds, the war saw low non-material casualties, with only about three million dead, MIA and wounded.