<h1>President's 'America First' stance: rejects UN effectiveness, boosts fossil fuel, tougher immigration, military threats, tariffs</h1> U.S. President criticized the United Nations as ineffective and signaled an assertive 'America First' foreign-policy stance, while reaffirming formal support for the UN. He announced policy shifts including tougher immigration and energy stances, endorsement of expanded fossil-fuel development, threats of military strikes and use of powerful tariffs against a foreign state to compel negotiations, and stronger backing for a state defending territory from invasion. He opposed international moves to recognize a Palestinian state, citing security concerns. Legal issues raised include potential implications for international law, UN diplomacy, treaty obligations, use-of-force norms, extraterritorial sanctions, and multilateral cooperation.