Top Pentagon officials have warned a war between the US and China or Russia "can happen at any time." US Secretary of Air Force Frank Kendell told academy students this month that the US and its allies needed a "sense of urgency." He added: "We may have to fight." Kendell continued: "War with China or Russia is not unlikely, it can happen at any time." He is not alone with Admiral Samuel Paparo, who commands US forces in the Indo-Pacific region, telling the US-based Brookings Institution, that