As the man said in Scarface, “don’t get high on your own supply.” The American and British government believe their own propaganda to the point of delusion. From Ron Paul at ronpaulinstitute.org:
Less than two weeks after NATO members reaffirmed allegiance to Article 5 – that an attack on one member was an attack on all members – the UK nearly put that pledge to the test. In a shockingly provocative move, the UK’s HMS Defender purposely sailed into Crimean territorial waters on its way to Georgia.
Press reports suggest that there was a dispute between the UK defense and foreign ministries over whether to violate Russia’s claimed territorial waters with a heavily armed warship. According to reports, Prime Minister Boris Johnson himself jumped in to over-rule the more cautious Foreign Office in favor of confrontation.
As Johnson later claimed, because the UK (and the US) does not recognize Russian sovereignty over Crimea, the UK was actually sailing through Ukrainian waters. It was an in-your-face move toward Russia just weeks after the US and NATO were forced to back down from a major clash with Russia in eastern Ukraine
This time, as was the case in eastern Ukraine, the Russians took a different view of the situation. Russian coast guard vessels ordered the HMS Defender to exit Russian territorial waters – an order they punctuated with rare live fire of cannon and dropping of bombs.
STRAIGHT LINE LOGIC 
My reading of Article 5 is that there is precisely NO commitment to support a Member which is attacked.
Such a Contract would amount to being taken to War at the behest of the latest ‘Political Lunatics’ to be voted into power by any one of the Contracting States.
Weasel-words from Lawyers.
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