<<You didn't know that dozens of PT boats were burned , battleships sunk , tons of rifles thrown into the ocean, pistols and binoculars smashed with bulldozers , planes and jeeps sold for a song.>>
I believe the thinking at the time was that with the A-bomb on the racks, the other stuff was kind of pointless. The monopoly on nukes trumped all those binoculars, pistols, etc. Nobody (apart from a few visionaries) foresaw wars of national liberation. The U.S. refused to share the Bomb's technology with its Soviet Allies, maintained a peacetime draft which was previously unheard of and maintained a constant stream of anti-Soviet bullshit to the extent that politicians like Henry Wallace, FDR's VP, had to leave the Democratic Party to run as a Progressive in the 1948 elections. The U.S.S.R. had a pretty good indication of the Allies' real intentions during the Greek Civil War, as early as 1944, when the British Army intervened on behalf of Royalist guerrillas against the Communist forces which had conducted the major part of the anti-Nazi Resistance.
I think if you really want to get into the origins of the Cold War, you'd also have to investigate the so-called Polish Question, and the pro-fascist activities of the Knights of Columbus in the U.S.A., first on behalf of Fascist Spain, preventing any Allied retaliation against a country which had sent an entire division of "volunteers" to invade the U.S.S.R. and was now, thanks to U.S. and British foreign policy, to be allowed to continue its Fascist regime indefinitely into the future.
The bottom line is that the Soviets had a great deal to fear from an anti-Communist U.S.A. with a nuclear monopoly and as they soon became encircled by a string of U.S. bases, events proved them right.