What are the broader national security implications of Trump and Hegseth's recent diplomatic positions regarding Ukraine and NATO?

According to John Bolton, the recent diplomatic stance taken by Trump and Hegseth has created significant damage to American national security that extends far beyond Ukraine alone. Their actions effectively undermined NATO's unified position on Ukraine while simultaneously damaging the Belavezha Accords of 1991, which established the peaceful dissolution of the Soviet Union along republican boundaries. This diplomatic misstep signals to other former Soviet republics that they are now vulnerable to similar unprovoked Russian aggression, with little expectation of meaningful U.S. intervention. Bolton emphasizes that this weakness is being closely monitored by China, particularly in Beijing, where leaders are observing America's reluctance to respond decisively to unprovoked aggression in Europe's heartland. The implications suggest a broader pattern of American retreat from global leadership responsibilities, potentially emboldening authoritarian regimes worldwide to pursue territorial expansions without fear of substantial U.S. resistance.