I'm guessing that Caliphate fleet is going through Commonwealth space, since I don't imagine the US would give them passage. Kinda surprised the Commonwealth nations would let them through, though I suppose we might learn more with the UK or US update.
Also, sorta interesting the US didn't picket the EV Lacerte-Eta Cassiopeiae jump point. Guessing it is because of fuel concerns, and or faith in the Commonwealth nations compliance.