>>16776323 (OP)
A standard airliner could make a trip anywhere in just about 10 days, give it 2 weeks to account for frequent stops.
Basically this
>>16777343
Provided everything isn't just scaled up but rather earth is copy pasted on the surface it would be reasonable to assume that super powers would have global influence. Airplanes can make it anywhere in 10 days and even something like a carrier group can be anywhere in under a year. With local allies/bases and radio communications there's enough response time to intervene most everywhere and there's about no chance that big powers wouldn't have infinite overseas territories and bases to do this from. Missiles could still be anywhere within hours. These are all realistic and even short times compared to what maritime empires spent maintaining their global possessions, the brits were perfectly willing to sail for months to maintain their far flung stations and had overseas wars with year long deployments etc. Long range wars and interactions would require a web of local allies however to get entangled into these conflicts in the first place though. A Jupiter sized planet could not be inhabited by humans naturally so most of the surface area would be USA style colonial hyper nations that get bigger and ultimately stronger the further away from birthplace of humanity one would go. Most would likely be from 2nd generation and further colonies e.g. the equivalent of USA would colonize itself when the tech improves to steam age and that's where most of the surface is actually occupied. That would result in large cultural blocks or maybe just one block that has reason and ability to fight and trade with itself.
If everything is scaled up (e.g. hyper continents and hyper oceans) then I suspect no one would bother much with another continent except for trade since oceans and even deserts would just be far too gigantic, the brits would not colonize australia as part of their empire if there was no land between it and london
