What's the blueprint in my situation

A bit of a technical question but my spouse is 10 years older than me and a US citizen with his own pension…I’m a UK citizen and US permanent resident.

I have a UK pension but also pay US SS…but currently don’t have any private pensions.

Is it possible to retire at the same time still? If so, what do I need to do to start preparing for that? And how would you suggest we plan together given this scenario? E.g. should we invest together and if so what accounts etc.

Essentially I want to know what the blueprint would be in this situation, for us to FIRE together?