The option to blockade China with oil being the target is closing fast. Aside from domestic production and Russian supply, China can ramp up oil import from Iran. DF-17 could be stationed in Iran and Pakistan to form a protective umbrella. Chinese merchant tankers can sail through this protective umbrella to reach Pakistan, from where oil will be pumped into China via pipelines. Chinese warships can station in Pakistan to patrol inside the protective umbrella. Longer term, maybe within five years, a pipeline from Iran to Pakistan will bypass that altogether. This will change the Middle East politics dramatically. To protect the DF-17, Iran will received whole new set of defensive network and maybe the J-10 fighters. With their border secured, they can focus on industrial development. This will be a nightmare for Israel, an industrialized Iran with ten time the population and the center of the Shiite Crescent.