Restrict User's EC2 access to a specific region

restrict-ec2-access-to-region.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "ec2:*"
            ],
            "Condition": {
                "StringEqualsIgnoreCase": {
                    "ec2:Region": [
                        "us-east-1"
                    ]
                }
            },
            "Resource": [
                "*"
            ]
        },
        {
            "Effect": "Allow",
            "Action": [
                "ec2:Describe*"
            ],
            "Resource": [
                "*"
            ]
        }
    ]
}