Stellaris - A space battle to win a war - 600K vs 500K

First time playing Ironman mode. Just finished fighting my war for independence from the Benevolent Interventionists who awoke 100 years ago. I was still in third place. My neighbours, and my rivals, the Avarrian Hierarchy stood in first. This was not just a battle to take the crown. This. Was. Personal. With this action I stand at the top of my contacts. My fleet and economic power dwarf everyone else. It’s just them. Just the Benevolent Interventionists who grasp onto victory with their slight technologi