No it has not always meant that! With over 15 years in the military not once has the term "military" only refer to ground soldiers!
Please read what Webster's actually said!
Military:
Funtion: adjective
Etymology: Middle English, from Latin militaris, from milit-, miles soldier Date: 15th century 1 a: of or relating to soldiers, arms, or war b: of or relating to armed forces; especially : of or relating to ground or sometimes ground and air forces as opposed to naval forces 2 a: performed or made by armed forces b: supported by armed force 3: of or relating to the army.
Read what I wrote again. I didn't say the term couldn't refer to armed forces collectively, but that the ground-forces-only meaning was the original and is still used today. The dictionary definition you quoted is the same as I did, that says the word especially refers to ground forces only.
When the word "military" came out in the 15th century it was for ground soldiers. But by modern, today standards that go as far back to Nepoleonic wars the term "military" is for all branches of the armed forces (Army, Navy, Marines, Air Force, Coast Guard) which the definition points out.
I believe your contention earlier was that the word had been synonymous with armed forces ever since the Roman Empire, not the 15th century. At any rate, I already cited examples of the original "military" usage that antedate the Napoleonic Wars by more than a century, and there are many more. The Royal Flying Corps was created in 1912 with a Military Wing and a Naval Wing. The Military Cross and Military Medal were instituted by the British government during WW1 for army personnel only. My 1959 Encyclopaedia Britannica has a section on "Military Science" articles, which deal exclusively with armies and land forces, and a different section on "Naval Science." Even today many diplomatic missions include a military attaché, an army officer, and a naval attaché, a naval officer. The examples can go on and on, but what's the point? I already said that the usage of "military" to refer collectively to armed forces has become prevalent since WW2.
Certainly not historically true, but modern warfare is so technically complex that it's pretty much mandatory that some core of trained and experienced people be maintained in peacetime.
--Justin
Which means a country has kept a military force, due to this it means it is economically feasible!
Yes, or it is unfeasible, economically or otherwise, not to do it.
--Justin