In response to US President Donald Trump’s public threat of imposing “very tough” tariffs on Russia, NATO Secretary General Mark Rutte has called on Russian President Vladimir Putin to take Ukraine-related negotiations more seriously. The NATO leader emphasized the importance of diplomatic efforts to resolve the crisis, as the situation in Ukraine continues to be a focal point of international diplomacy. The warning is part of a broader effort to maintain pressure on Moscow to engage in meaningful discussions, with key allies closely monitoring the development of the situation.