due to stalin'sthreat to berlin & the communisttakeover in czechoslovakia, it persuaded the western powers that they needed a formalmilitaryalliance to protect themselves from the USSR & wanted to send a message about their determination to stand firm againstcommunism
| NATO, 1949
april1949: US, UK, france & 9 other western countries joined to form NATO
they agreed that, if anymember was attacked,allmembers of NATO would come to assistance
british foreign secretary, bevin, had played a major part in bringing this alliance & made a speech in british parliament in which he'd welcomeUS involvement
it wasn't inevitable that US would get involved directly in the defence of western europe
truman doctrine said US would offer assistance but a military allaince was beyonf this
NATO resulted in an ongoing US military presence in europe throughout cold war