Leader of the British opposition Labour Party, Jeremy Corbyn (C), gives a speech during a rally against a proposed renewal of Britain's Trident nuclear weapon system in Trafalgar Square central London on February 27, 2016
Tens of thousands of people joined a protest in central London Saturday against the renewal of Britain's nuclear weapon system Trident. A decision is expected to be taken later this year on replacing the ageing submarines which carry the Trident missiles at an estimated cost of 31 billion GBP (39 billion euros, 43 billion USD). / AFP / NIKLAS HALLE'N        (Photo credit should read NIKLAS HALLE'N/AFP/Getty Images)