# US-China-Iran economic and diplomatic tensions > Live situation record from CLSTR: https://clstr.news/situations/us-china-iran-economic-and-diplomatic-tensions > Updated: 2026-08-25T14:03:15.000Z. Sources: 8. Developments: 2. The United States has intensified economic pressure on Iran through a strategy termed ‘Operation Economic Outcast’. US Treasury Secretary Scott Bessent described these new sanctions, which target dozens of individuals and entities linked to Tehran, as ‘the largest financial attack ever’ against the Iranian regime. The US has warned that businesses and banks failing to sever ties with Iran will face isolation. China has responded by threatening potential retaliatory measures, with Foreign Ministry spokesperson Lin Jian opposing the ‘illegal unilateral sanctions’ and asserting that Beijing will protect its interests. China remains a major purchaser of Iranian oil and maintains that its cooperation with Iran is within international law. This diplomatic friction occurs as a meeting between US President Donald Trump and Chinese President Xi Jinping approaches. Additional regional shifts include the United Arab Emirates deciding to sever all economic ties with Tehran following ballistic missile launches into UAE territory. ## Timeline ### 2026-08-25: China threatens retaliation against US sanctions on Iran China has threatened retaliation against US sanctions on Iran, stating it will take all necessary measures to protect its economic interests and its legal cooperation with Tehran. 2 sources. https://clstr.news/cluster/china-threatens-retaliation-against-us-sanctions-on-iran ### 2026-08-25: US economic pressure intensifies amid Russian instability and China's resistance The US is ramping up economic pressure on Iran through new sanctions, while China resists, and Russia faces ongoing economic instability and capital flight due to the prolonged war. 6 sources. https://clstr.news/cluster/russias-national-debt-shifts-to-domestic-financing-amid-sanctions --- Cite as: US-China-Iran economic and diplomatic tensions. CLSTR, https://clstr.news/situations/us-china-iran-economic-and-diplomatic-tensions