WASHINGTON — The U.S. Defense Intelligence Agency plans to upgrade its international intelligence-sharing system to allow more seamless collaboration with a broader coalition of allies. DIA uses the top-secret system to communicate with and share intelligence among the U.S. and its Five Eyes partners — the U.K., Australia, New Zealand and Canada. Chief Information Officer Doug Cossa told reporters the agency will begin designing an upgrade to Stone Ghost in fiscal 2024 to allow information to