<h1>Iran-US talks in Oman focused on nuclear negotiations amid US military deterrence and new sanctions plus potential import tariffs.</h1> Indirect Oman talks focused on a framework for further negotiations limited to Iran's nuclear programme, with Iranian insistence on dialogue without threats and US military presence underscoring deterrence. Simultaneously the US imposed sanctions targeting a shadow fleet, trading firms and executives, froze assets in US jurisdictions, and issued an executive order authorizing potential import taxes on goods from countries buying Iranian oil, removable if purchasers align with specified US security and policy interests.