LONDON — David Cameron has launched a major push to win support for his call to keep Britain inside what he says is a “reformed” European Union ahead of a June 23 referendum.

The British prime minister used a TV appearance Sunday to emphasize that Britain’s national security is best served by staying in the 28-nation bloc. He cited emerging challenges from Russia and the rise of extremist groups in the Middle East as threats better dealt with as part of an alliance.

More at Source: David Cameron launches major push to keep Britain in EU – Europe – Stripes