Welsh is best known for coverage of conflicts and disasters; particularly the civil wars in Kosovo, Ivory Coast and Liberia, and the famines in Somalia and Sudan. Roles for the BBC included World Affairs Correspondent, West Africa Correspondent, Defence & Security Correspondent, TV Duty Editor, presenter of the World Service programmes Newshour and The World Today, and reporter/presenter on the television programmes Breakfast and Newsround.
Welsh is primarily recognized for his coverage of conflicts and disasters, including civil wars in Kosovo, Ivory Coast, and Liberia, as well as famines in Somalia and Sudan. At the BBC, Welsh held roles such as World Affairs Correspondent, West Africa Correspondent, Defence & Security Correspondent, TV Duty Editor, presenter of Newshour and The World Today on the World Service, and reporter/presenter on Breakfast and Newsround.