Conditions:
  AlwaysTrueCond:
    !And
      - !Not [ !Equals [ !Ref "AWS::Region", completely-made-up-region ] ]
      - !Or [ !Equals [ !Ref "AWS::Region", completely-made-up-region ], !Equals [ !Ref "AWS::Region", completely-made-up-region] ]
Resources:
  Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: 
        !If
        - AlwaysTrueCond
        - MyBucketName
        - !Ref AWS::NoValue