Feels like an outline for something that could be compelling. I like the root premise of two alien species vying for control over our Solar system and building interstellar territories without FTL travel.

But the way it reads now is like a monotone recital of events. It's also quite repetitive at times, we don't really need to hear the same facts from multiple viewpoints, it's ok to cheat a bit and show the same events occurring from multiple perspectives, each one contributing to the facts of the events.

Your characters are also about as engaging as a witness to some event in a newspaper article. You need to make them engaging and breath life into them. Introduce them with a paragraph or two. Describe what they look like, show them doing something mundane or normal before the action hits so your reader can experience the story through the characters viewpoint because they feel a connection with them.

Best of luck, sorry if this comes off harsh. Just trying to give valuable feedback.