Indeed. And I'm unsurprised that you are unable to make sense of it.
If the wars are pointless, why does America pursue them? If the nations are defenseless, why doesn't America win? If Communism was a bogeyman, where did those armies that invaded and occupied Eastern Europe, Afghanistan, etc. come from? The nuclear missiles that menaced the West for so many decades? Why did so many other countries sign up for NATO?
The wars are pointless because they are simply a continuation of colonialism. Why the US pursues them is for hegemonistic aims, as evidenced by the 700 military bases and 2000 nuclear warheads distributed worldwide.
As for why other countries signed up, because apart from the US other countries are willing to work together. NATO was an offshoot of the Brussels Treaty
Of course, the scope of NATO was limitedThe Treaty of Brussels, signed on the 17 March 1948 by Belgium, the Netherlands, Luxembourg, France, and the United Kingdom, is considered the precursor to the NATO agreement. This treaty established a military alliance, later to become the Western European Union. However, American participation was thought necessary in order to counter the military power of the Soviet Union, and therefore talks for a new military alliance began almost immediately.
Further, the article limits the organisation's scope to Europe and North America, which explains why the invasion of the British Falkland Islands did not result in NATO involvement.
In 1954, the Soviet Union suggested that it should join NATO to preserve peace in Europe.[3] The NATO countries ultimately rejected this proposal.
And almost instantly there was a crisis
The unity of NATO was breached early on in its history, with a crisis occurring during Charles de Gaulle's presidency of France from 1958 onward. De Gaulle protested the United States' hegemonic role in the organisation and what he perceived as a special relationship between the United States and the United Kingdom. In a memorandum sent to President Dwight D. Eisenhower and Prime Minister Harold Macmillan on 17 September 1958, he argued for the creation of a tripartite directorate that would put France on an equal footing with the United States and the United Kingdom, and also for the expansion of NATO's coverage to include geographical areas of interest to France, most notably Algeria, where France was waging a counter-insurgency and sought NATO assistance.
How did any of those wars increase American power? I don't dispute that power politics is a real force throughout the world history, but that doesn't mean American actions are based solely on cynical Realpolitick. Indeed, Americans policy has often been criticized as too idealistic.
I think the last 50 years have shown that power was increased by installing governments favorable to US ambitions regardless of the suffering of the people or the society.
Ask any of these countries:
http://en.wikipedia.org/wiki/List_of_United_States_military_history_events#1940-1945
For example, how do you square American efforts such as the creation of the UN and Peace Corps, or the undermining of the Anglo/Franco/Israeli attack on the Suez with your view of America as driven purely by the violent pursuit of power?
Simple; the US ignores the UN but attacks anyone else who does the same. Else it vetoes resolutions not in its favor and favors only those who work with it. An excellent forum for power play.
The Peace Corps is a good organisation, but ultimately powerless.
How many Americans know anything outside their own country?
The entire motivation for the deal (and the formation of NATO) was that half of Europe WAS under occupation at the time.
As compared to under dictators validated by US arms and funds? Oh wait, different color of people.