In a letter to UK Parliamentary Under-Secretary of State at the Foreign, Commonwealth and Development Office Hamish Falconer, Mousavi criticized recent remarks by the British official in the House of Commons, where Falconer accused Tehran of violating transit rights and called for unrestricted passage through the Strait of Hormuz. He also referred to a British- and French-led multinational mission in the Strait of Hormuz, allegedly aimed at protecting shipping. 
According to the Iranian ambassador, focusing solely on the consequences while ignoring recent aggressive actions by the United States and the Israeli regime risks distorting reality and undermining prospects for balanced diplomacy.
Mousavi stated that illegal military attacks against Iranian territory, infrastructure and officials had severely weakened regional stability and created a dangerous security environment across the Persian Gulf. Any disruption to maritime security in the Strait of Hormuz, he argued, is a direct consequence of such destabilizing actions and cannot be attributed to Iran alone.
Citing international law and the UN Charter, the envoy emphasized that Iran, as a littoral state of the Persian Gulf and the Strait of Hormuz, possesses legitimate and internationally recognized security interests. He said Tehran's measures in response to extraordinary threats should be understood within the framework of self-defense and the protection of national sovereignty.
Mousavi warned that expanding foreign military arrangements under the banner of maritime security could further militarize an already fragile environment and undermine ongoing diplomatic efforts. He stressed that freedom of navigation should not become a tool for political pressure or strategic confrontation and said any security arrangement led by Britain, France or other external actors without the participation and consent of regional coastal states would be unacceptable.
The ambassador reaffirmed Iran's commitment to diplomacy, dialogue and the protection of international maritime trade. He also reiterated that nuclear weapons have no place in Iran's defense doctrine and criticized recent European efforts to pursue the snapback mechanism, describing them as counterproductive.
Mousavi called on British officials to exercise greater restraint and avoid inflammatory rhetoric that could further escalate tensions.

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