H.R. McMaster (former US National Security Advisor) has expressed skepticism regarding Pakistan's role in facilitating talks between the US and Iran, characterizing Pakistan as a 'client' of China. In an interview, he suggested that Pakistan's involvement may not be impartial, hinting at ulterior motives tied to China's interests in preserving the Iranian regime. McMaster noted that Beijing's significant economic engagement with Iran, particularly in oil purchases, bolsters the Iranian government's financial stability, thereby affecting regional dynamics. He criticized Pakistan's historical use of terrorist organizations as instruments of foreign policy, emphasizing that this behavior has persisted since the late 1940s. This context raises questions about the sincerity of Pakistan's diplomatic offers, as its actions appear aligned with China's strategic goals in the Middle East.