The United States is reinforcing its military presence in the Middle East amid stalled diplomatic efforts to prevent renewed conflict with Iran over its nuclear program. Two major naval groups, the USS Theodore Roosevelt aircraft carrier strike group and the USS Makin Island amphibious group, are en route to the region, bringing approximately 9,000 additional sailors and Marines. The Roosevelt, which departed San Diego on September 27, is expected to replace the USS George Washington, already stationed in the area. While these deployments expand U.S. military options, officials have not indicated any immediate plans for new strikes against Iran.

The increased military activity coincides with firm Iranian resistance to U.S. demands related to Tehran’s uranium enrichment. Mohsen Rezaei, Iran’s Supreme National Security Council Secretary, emphasized during a meeting with Pakistani army chief Field Marshal Asim Munir that Iran will not relinquish any of its enriched nuclear material. Rezaei described uranium as a national asset and stressed the need for Washington to rebuild trust before negotiations can resume.

Echoing this stance, Iranian Parliament Speaker Mohammad Bagher Ghalibaf outlined seven conditions that the United States must meet to advance talks. These include lifting sanctions, ending the blockade of Iranian ports, releasing Iranian frozen assets, and ceasing hostile actions in the region. President Masoud Pezeshkian also criticized negotiations under military threat, calling for sanctions relief as a prerequisite to meaningful dialogue. Tehran has previously signaled a willingness to dilute uranium enriched to 60 percent domestically but continues to reject transferring any material abroad.

Washington maintains that any agreement must effectively prevent Iran from developing nuclear weapons, an allegation Iran denies. The diplomatic deadlock persists amid competing demands and deep mistrust on both sides.

Pakistan has played a key role as a mediator in the dispute since U.S. and Israeli strikes on Iranian positions began in late February. Islamabad helped negotiate an April ceasefire and facilitated a memorandum of understanding in June aimed at fostering a permanent settlement. However, the process ultimately faltered. Field Marshal Munir’s recent visit to Tehran followed discussions by Russian Foreign Minister Sergei Lavrov, highlighting the complex international involvement in the crisis. Some hardline factions within Iran remain skeptical of mediation efforts, viewing them as potentially benefiting the United States by easing external pressure without delivering sanctions relief.