South Korean business ties with Iran
The United States has been committed to the defense of freedom in South Korea for decades–since the end of active combat on the Korean peninsula in 1953. Today, the US has some 28,000 military personnel based in South Korea.
This is to say America “has South Korea’s back.” Recently, when the South Korean warship Cheonanwas sunk in a suspicious explosion suspected to have been caused by a North Korean torpedo, the US argued on behalf of South Korea in the UN Security Council and has plans for combined naval exercises in Korean waters.
America also has extensive business ties with South Korea, with South Korean companies exporting many products to the American market. Unfortunately, several of those big publicly-traded South Korean firms also have close, extensive ties to Iran.