With growing calls to provide security guarantees to Ukraine, several politicians have argued that Article 5 may be invoked as a result of providing these guarantees, triggering NATO member states' collective defense obligation. President Trump has even prospectively stated that he would refuse to provide Article 5 defense for member states that do not meet their 2% GDP investment target. Volume XLVIII staff editor, Kenza Tahri, explores the circumstances under which Article 5 would be invoked as a result of providing security guarantees to Ukraine, and explains the stance of international treaty law on the issue of whether a NATO ally's failure to meet its GDP spending guidelines would constitute a material breach of the agreement, excusing other member states from their collective defense obligation.
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