If you go to the WooCommerce code reference and look up country codes, USAF is always listed after US. For example class-wc-countries.php (https://woocommerce.github.io/code-reference/files/woocommerce-includes-class-wc-countries.html#source-view.238). Line 410 has a “countries” array of ‘AE’, ‘CZ’, ‘DO’, ‘GB’, ‘NL’, ‘PH’, ‘US’, and ‘USAF’. I need to know what USAF means.