The United States announced sanctions targeting third countries that trade with Iran in an effort to halt Iran's nuclear development program. Cooperation from China, which buys up to 90% of Iranian crude oil, is a crucial factor for ensuring the effectiveness of these sanctions. While the United States has stressed that no country, including China, can escape its sanctions, it remains unclear how strongly it will push ahead given the upcoming summit between the US and Chinese leaders next month. Experts point out that if practical financial sanctions are not implemented, these sanctions will be ineffective, and they predict that China's response will determine the success of the US's 'isolation strategy'. It is also expected that countries surrounding Iran, such as the United Arab Emirates, Turkey, and Iraq, will be affected by the US sanctions.