Major international alliances, from NATO to OPEC, are showing signs of fracture under the weight of escalating geopolitical tensions, raising questions about the durability of multilateral cooperation. Ongoing conflicts in Gaza, Lebanon, and Iran have tested the resolve of global institutions, with critics arguing that the rules-based international order has been left largely ineffective in the face of sustained warfare. Observers warn that the growing inability of world bodies to enforce norms or broker lasting peace could signal a broader realignment of global power structures.