**To describe EC2 Fleet history** The following ``describe-fleet-history`` example returns the history for the specified EC2 Fleet starting at the specified time. The output is for an EC2 Fleet with two running instances. :: aws ec2 describe-fleet-history \ --fleet-ids fleet-12a34b55-67cd-8ef9-ba9b-9208dEXAMPLE \ --start-time 2020-09-01T00:00:00Z Output:: { "HistoryRecords": [ { "EventInformation": { "EventSubType": "submitted" }, "EventType": "fleetRequestChange", "Timestamp": "2020-09-01T18:26:05.000Z" }, { "EventInformation": { "EventSubType": "active" }, "EventType": "fleetRequestChange", "Timestamp": "2020-09-01T18:26:15.000Z" }, { "EventInformation": { "EventDescription": "t2.small, ami-07c8bc5c1ce9598c3, ...", "EventSubType": "progress" }, "EventType": "fleetRequestChange", "Timestamp": "2020-09-01T18:26:17.000Z" }, { "EventInformation": { "EventDescription": "{\"instanceType\":\"t2.small\", ...}", "EventSubType": "launched", "InstanceId": "i-083a1c446e66085d2" }, "EventType": "instanceChange", "Timestamp": "2020-09-01T18:26:17.000Z" }, { "EventInformation": { "EventDescription": "{\"instanceType\":\"t2.small\", ...}", "EventSubType": "launched", "InstanceId": "i-090db02406cc3c2d6" }, "EventType": "instanceChange", "Timestamp": "2020-09-01T18:26:17.000Z" } ], "LastEvaluatedTime": "2020-09-01T19:10:19.000Z", "FleetId": "fleet-12a34b55-67cd-8ef9-ba9b-9208dEXAMPLE", "StartTime": "2020-08-31T23:53:20.000Z" } For more information, see `Managing an EC2 Fleet <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/manage-ec2-fleet.html>`__ in the *Amazon Elastic Compute Cloud User Guide for Linux Instances*.