Introduction
It is widely believed that military alliances are created in response to a hostile party. Because of that, many of them might not last longer than a decade. There is however one successful example that has survived for 70 years. The North Atlantic Treaty Organization has been created during the Cold War with a clear objective to safeguard the Euro-Atlantic area from any potential adversary or aggression. As such its role has never expired, but on the contrary become more intense against the new challenges that became more prominent in the 21st century. From historical stand point, it can be said that the organisation, (up until last two decades) was predominantly under the US leadership. And despite the fact that many of the leading European countries today play major role in NATO, it can be said that America still presents the main pillar. As such this is no surprise that the US decisions play very crucial role in the NATO operations. Naturally, however, there have been several disagreements or different views on certain issues between the US and European allies. Some thinkers argue that the current timeline showcases that divide in stronger colours, ever since Donald Trump became the president of the United States.