An appeal that raised some $2 billion to help millions of people in Yemen was a “remarkable success of international solidarity” for the country’s war-weary people, but aid alone will not provide a solution to the conflict, United Nations Secretary-General Antonio Guterres said on Tuesday.

Speaking to reporters in Geneva after opening a pledging conference for Yemen, Mr. Guterres said that more than $2 billion had been promised by Member States before the end of the event.

Above all, the UN chief said, “we need a serious political process to lead to a political solutio