With the departing military went much of their warfighting kit. Mr Cameron has not committed to the 2% benchmark beyond March 2016.

A reduced US military presence, and Europe's weak defense capabilities were feared to have created a vacuum. The "2%" figure itself is a relatively recent move to address that concern.

Barack Obama has pressed David Cameron to maintain Britain's commitment to meeting the Nato target of spending 2% of GDP on defence.

It started in the 90's. Obama NATO. And despite the many differences between Bush's foreign policy and that of Obama, his successor, one thing the two leaders agreed upon was the need for more defense spending from NATO …

2) Russia. Obama, the least Atlanticist president in America’s postwar history, viewed NATO as a Cold War relic and radically shrank the U.S. military presence in Europe to a mere 30,000 troops — fewer, notes Major General Robert Scales, a former commandant of the U.S. Army War College, than the number of police in New York City.

Obama maintained NATO’s traditional position of ‘no business as usual’ with Russia and referred to Russia as a ‘violator’ of sovereignty. President Obama will host the NATO Summit May 20-21, in Chicago, Illinois. This is the first NATO Obama has hosted; the last Summit in the USA took place in 1999 in Washington. As part of his role in NATO Obama looks forward to welcoming leaders from NATO member and partner nations to his hometown for the Summit of the world’s most successful Alliance.

President Barack Obama echoed President-elect Donald Trump on Tuesday, signaling to America’s NATO allies that if Greece can pay its fair share … The 2014 Wales Summit of the North Atlantic Treaty Organization (NATO) was a meeting of the heads of state and heads of government of the North Atlantic Treaty Organization, held in Newport, Wales on 4 and 5 September 2014.Such summits are sporadically held, and allow leaders and officials from NATO Allies to discuss current issues of mutual concern and to plan strategic activities. Fourth, all 28 NATO nations have pledged to increase their investments in defense and to move toward investing 2 percent of their GDP in our collective security. Russia’s activities since the annexation of Crimea in 2014 have only heightened tensions between NATO and Russia. These resources will help NATO invest in critical capabilities, including intelligence, surveillance, reconnaissance and missile defense.