Hey guys I found this website that lists the relative strength and military equipment stockpile of real world nations and I thought Id share. Its really helped me get an idea of what kind of numbers would be reasonable for my nation and what kinds of equipment a modern military would need to defend itself.
https://www.globalfirepower.com/
It showed me roughly how many fighter jets, tanks and carriers my nation would need in terms of numbers that was realistic to some degree, (my fictional nation simultaneously has the largest air, naval and land army compared to the real life nations.) And what kinds of vehicles Id hypothetically have in each branch.