'GR' => array( // Greek Regions.
        'I' => __( 'Attica', 'woocommerce' ),
        'A' => __( 'East Macedonia and Thrace', 'woocommerce' ),
        'B' => __( 'Central Macedonia', 'woocommerce' ),
        'C' => __( 'West Macedonia', 'woocommerce' ),