Why China and Russia Complicate Donald Trump's Strategy to Isolate Iran

Russia's Foreign Minister Sergey Lavrov, Iranian Foreign Minister Abbas Araghchi, and India's counterpart S Jaishankar recently walked to their seats at a two-day BRICS nations meeting in New Delhi, India. United States President Donald Trump has threatened financial punishments for any nation providing an economic lifeline to Iran, declaring an economic D-Day against Tehran.

This threat comes six months into the US conflict with Iran and marks President Donald Trump's latest effort to wield US economic power. However, analysts note that President Donald Trump's leverage over China and Russia remains limited. Russia operates largely outside the US-led economic framework due to existing sweeping US sanctions, while China has repeatedly bypassed US sanctions to serve its economic interests.

Paul Musgrave, an associate professor of government at Georgetown University in Qatar, stated that executing this pressure campaign will be very difficult for President Donald Trump. He noted that unilateral enforcement lacks the traditional multilateral coordination involving China, Russia, and the UN Security Council P5 members.

In a post on Truth Social, President Donald Trump warned of tremendous economic consequences for countries aiding Iran through oil smuggling, swap lines, cash transfers, exchange houses, ship registries, and front companies. Meanwhile, the United Arab Emirates announced an indefinite trade embargo on Tehran following allegations that the Iranian military launched two ballistic missiles at its territory. Nader Habibi, a Middle East economics professor at Brandeis University, suggested the US likely encouraged the UAE trade embargo.

Disrupting China-Iran trade presents major hurdles. Kpler data shows China purchased 80 percent of Iran's shipped oil in 2025, and many independent Chinese oil refineries have little reliance on the US financial system. Furthermore, Yu Jie, a senior research fellow at Chatham House, explained that President Donald Trump's threats will not alter China's trading relationship with Iran, as Beijing seeks a temporary truce with Washington ahead of Chinese President Xi Jinping's planned visit to Washington. Chinese Foreign Ministry spokesman Lin Jian also responded that additional sanctions will not solve the issue.

Russia poses a distinct challenge through established commercial and military ties that bypass the West. In January 2025, Russia and Iran signed a 20-year partnership treaty, pushing trade volume to $4.8bn in the first 11 months of 2025 according to Russian Energy Minister Sergey Tsivilev. Additionally, NBC News cited a European government document reporting that Russia shipped drone components, ammunition, and TNT to Iran via the Caspian Sea.

Iranian Foreign Minister Abbas Araghchi criticized the US economic campaign on X, calling it economic terrorism that threatens the global economy. As a BRICS member, Iran is pursuing new financial avenues, with Central Bank governor Abdolnaser Hemmati announcing plans to join the BRICS New Development Bank and expand local currency transactions with fellow members including Russia, China, India, and Brazil. Ali Akbar Dareini, an analyst at the Center for Strategic Studies in Tehran, added that Iran will continue to press forward despite these sanctions.