The world this week
Politics America sent an aircraft-carrier group to the Middle East in response to “troubling and escalatory” signs that Iran might attack American forces in the region. Iran, meanwhile, said it would no longer abide by all of the terms of the nuclear deal it signed with America and other world powers in 2015. America withdrew from that deal last year and reimposed sanctions, aiming to cut off Iranian oil exports; it announced new sanctions this week, targeting iron, steel, copper and aluminium, which account for around 10% of Iran’s exports. Palestinian militants in Gaza fired hundreds of rockets into southern Israel, killing four Israelis. Israel responded by pounding Gaza with air strikes, killing 27 Palestinians. It was the deadliest fighting since 2014. A truce was finally brokered by Egypt. South Africans voted…