So let me just say that at a time of great challenges around the world, cooperation between the United States and Russia is absolutely critical to world peace and stability.
"If we think that for society as a whole it is important to have ring-fencing, both from a financial stability point of view and from a cultural point of view, I absolutely agree it should have strong enforcement and strong incentives in order for this to happen, " said the chief executive.
"I absolutely believe that al Qaeda and the threat of al Qaeda and Taliban senior leadership are critical to stability in the region, " McChrystal said in a speech to London's International Institute for Strategic Studies.