Spain
The Spanish army came into existence around the late 15th century, with its primary goal being the defense of the Spanish peninsula and a few other islands under the reign of the country. Moderately sized, the fleet recruits about 75K personnel, besides thousands of armed vehicles it owns and operates.
While this particular military had about a million soldiers back in the times of the first and the second world wars, it has drastically reduced owing to the peace treaties that followed between the European nations. As of 2022, it featured a range of commands for all sorts of operations.