• US intelligence indicates China is preparing to deliver air defense systems to Iran.
• The systems are shoulder-fired anti-air missile systems known as MANPADs.
• China denies providing weapons to any party in the conflict.
• The move could escalate China's support for Iran despite US warnings.

This development may suggest China's growing strategic interest in the Middle East and its willingness to challenge US influence in the region. The delivery of air defense systems could indicate a shift in China's approach to supporting Iran, potentially altering the balance of power in the conflict. This move may also signal China's desire to maintain deniability while providing significant military aid to Iran.