President Donald Trump announced Friday that the United States would keep talking with Iran, but declared the month-old ceasefire between the two countries finished. The announcement came after several days of intense military exchanges that broke the preliminary truce negotiated last month. American forces reportedly struck more than 170 Iranian military targets, and Iran responded by firing at US bases in Qatar, Bahrain, and Kuwait. Qatari mediators traveled to Iran to try to restart diplomacy, and reports indicated a new round of talks might occur in Switzerland, though an Iranian news agency denied those preparations. The conflict centers on the Strait of Hormuz, a critical global shipping lane, making the breakdown significant for international oil routes.