Someone better narrow this down quickly or it will turn into another pecker fight:
If you want to define a military, then you need to consider that the criteria are, intercontinental projection, continental projection, sealift, airlift, training, persistence, projection, absolute power, logistics, precision and capacity to conduct concurrrent intercontinental warfare. (ie tempo issues), political will and intent, capacity to surge, capacity to surge local industry, energy autonomy, closure times to strike any given point of the globe in under 10 minutes, 30 minutes, 1 day, 1 week and 1 month. Then that has to factor in nuke and conventional responses.
That narrows it down to one nation.
If you don't want to include the US in the outcome and are just looking at a sheltered outcome, then change the criteria. BUT the above are the
realistic measurement issues.
If we are going on a chest beating exercise, then change the criteria to pick your country of choice.