Why must European nations increase their defense spending according to NATO Secretary General Mark Rutte?

According to NATO Secretary General Mark Rutte, European nations must increase their defense spending to create a more balanced security relationship with the United States. He emphasizes that Europe cannot continue its current approach without allocating more resources to defense capabilities within the continent. Rutte argues that increased European defense spending will establish a more equitable partnership within NATO, reducing overreliance on US support. This strategic shift is presented as essential for maintaining effective collective defense and ensuring Europe can adequately address security challenges, particularly regarding Russian aggression and supporting Ukraine.