The inability of US President Donald Trump to obtain the expected support from NATO allies in his war policies against Iran is considered an important turning point in American foreign policy. According to NATO's founding treaty signed in 1949, the joint defense obligation applies only to attacks occurring on European and North American territories. Therefore, Trump's request for support from allies in regions outside NATO's jurisdiction, such as Iran or the Strait of Hormuz, is considered contrary to the spirit of the agreement. Historically, US presidents did not directly request military support from NATO allies during the Korean and Vietnam wars. The 1956 Suez Crisis is regarded as a turning point marking the change in power balances in the West and the consolidation of US supremacy. Trump's disparaging remarks about NATO and threats towards allies are interpreted by some analysts as signs of the decline of the American empire. These developments indicate a tendency of the US to withdraw from its traditional role in the Western security order and suggest that its global influence may diminish.