**To create a mitigation action** The following ``create-mitigation-action`` example defines a mitigation action named ``AddThingsToQuarantineGroup1Action`` that, when applied, moves things into the thing group named ``QuarantineGroup1``. This action overrides dynamic thing groups. :: aws iot create-mitigation-action --cli-input-json file::params.json Contents of ``params.json``:: { "actionName": "AddThingsToQuarantineGroup1Action", "actionParams": { "addThingsToThingGroupParams": { "thingGroupNames": [ "QuarantineGroup1" ], "overrideDynamicGroups": true } }, "roleArn": "arn:aws:iam::123456789012:role/service-role/MoveThingsToQuarantineGroupRole" } Output:: { "actionArn": "arn:aws:iot:us-west-2:123456789012:mitigationaction/AddThingsToQuarantineGroup1Action", "actionId": "992e9a63-a899-439a-aa50-4e20c52367e1" } For more information, see `CreateMitigationAction (Mitigation Action Commands) <https://docs.aws.amazon.com/iot/latest/developerguide/iot/latest/developerguide/iot/latest/developerguide/mitigation-action-commands.html.html#dd-api-iot-CreateMitigationAction>`__ in the *AWS IoT Developer Guide*.