Along with other Nato members, Britain has pledged to increase core defence expenditure to 3.5pc of GDP by 2035. He is the second child of Sir Tony, the former prime minister, and Cherie Blair KC, the human rights barrister. Meanwhile, after stepping down as prime minister in 2007, Sir Tony also ran advisory firm Tony Blair Associates until 2016. He now leads the Tony Blair Institute for Global Change, a non-profit think tank that seeks to influence government policy. The company makes a cheap anti-drone interceptor known officially as Skyhammer, which is being rushed into service by the Ministry of Defence.