Analysis
Merkel's statement reflects her long-standing support for multilateral cooperation, but the claim that it is the *only* solution is hyperbolic. Many global issues (e.g., climate change, pandemics) have seen unilateral or bilateral efforts alongside multilateral ones. The absolute phrasing ('only way') lacks empirical validation.
Background
Angela Merkel, as German Chancellor, frequently championed multilateralism in her UN speeches, emphasizing collective action for global challenges. However, history shows mixed approaches (e.g., Paris Agreement vs. national climate policies). The UN itself operates on multilateral principles but does not claim exclusivity.
Verdict summary
While Merkel advocates for multilateralism, it is not empirically proven as the *only* way to solve global problems.