Retired U.S. Army General David Petraeus intervene on Brexit issue. He insisted that without UK, European Union will have a significant reduce in strength and resilience against terrorist attack. He urged voters to choose to stay in the EU bloc.

In his exclusive article for The Telegraph, the former head of CIA said, "Brexit would deal a significant blow to the EU's strength and resilience at exactly the moment when the West is under attack from multiple directions." He also said that Brexit will lessen UK's influence in Europe.

"A Brexit would also reduce considerably Great Britain's ability to influence and guide the future of Europe, still the world's largest economic bloc; it would undoubtedly reduce British influence on the world stage, as well."

Mr. Petraeus said he understand the frustration of many of his British friends with the EU. He also understand the appeal to retreat and preserve sovereignity in an isolation. It is because that is exactly the same temptation which U.S. often feel, to preserve sovereignty and safeguard destiny by pulling back from the world.

Nevertheless, he pointed the geographic location of the United States with oceans in either coasts are similar to English Channel in a lesser degree. Therefore EU must stand with EU, because security and prosperity of both UK and United States cannot be separated from the political and economic conditions on the continent.

"Given the dangers and challenges that threaten us around the world, this is a moment when the west and its institutions, including the EU, need to be drawing together – not pulling apart. At least from a national security standpoint, none of the problems the US and UK face will become easier to solve if the UK is out of the EU; on the contrary, I fear that a 'Brexit' would only make our world even more dangerous and difficult to manage," Petraeus further added.

Meanwhile, many business people have shown their support of Brexit. Irish Examiner reported that 250 business leaders gave support for Brexit, forming the Vote Leave group. One of them is a former HSBC Holdings chief executive Michael Geoghegan. The group will also have its business advisory council to be led by former director general of British Chambers of Commmerce John Longworth.

However, David Petraeus' article has made some of the business leaders to refrain from supporting the Brexit. The Guardian reported two leading figures said that their names had been wrongly included in the list. They are David Ross, the co-founder of Carphone Warehouse, and John Caudwell, the co-founder of Phones 4u.

Former head of CIA and retired U.S. Army General David Petraeus has intervened on Brexit issue. He compelled voters to choose to stay in European Union for the sake of security and war on terror in the European continent.