British Prime Minister David Cameron (L) listens as he meets with former British Royal Marine Commando and-D Day veteran Patrick Churchill, at the Millets Farm Centre Cafe in Abingdon, near Oxford, west of London, on June 22, 2016, as the prime minister continues to campaign to avoid a Brexit ahead of the June 23 EU referendum. Wednesday is the last day of campaigning for Britain's referendum on whether or not to stay in the EU, a momentous decision with far-reaching implications for Britain and Europe. (Photo by Geoff CADDICK / various sources / AFP via Getty Images)
