India is facing some hard choices on its ties to Iran in 2019. Oil is crucial to their relationship, and the United States has been targeting Iran's exports of crude with sanctions. Though Washington has given eight countries, including India, a waiver from those penalties, that reprieve lasts until only March. And while New Delhi values its growing ties with the United States, it doesn't want to appear to be subservient to any great power. The question boils down to this: How far will New Delhi go in accommodating U.S. pressure in light of its own interests in the region and the world?...