The United States will exempt China, India and Japan from oil sanctions on Iran, Secretary of State Mike Pompeo said on Monday, while at the same time vowing to be “relentless” in pressuring Tehran. Pompeo listed eight places that will enjoy temporary waivers from a ban on all oil transactions with Iran: China, Taiwan, India, Italy, Greece, Japan, South Korea and Turkey. Earlier in the day, the administration reimposed sanctions on Iran’s energy, banking, shipbuilding and...