Four major cloud providers – Amazon Web Services, Google, Microsoft and Oracle – will all participate in a $9 billion U.S. Department of Defense remote computing contract, the Pentagon announced today. The decision to usher four American cloud computing vendors into its Joint Warfighting Cloud Capability contract marks a departure from an earlier winner-take-all approach that for years bogged down the military’s transition into commercial cloud after losers excluded from the contract protested its fairness.