South Korea's defense minister Jeong Kyeong-doo is heading to Saudi Arabia to boost bilateral defense cooperation with the kingdom.<br />It's his first official visit there since becoming defense chief last September.<br />Riyadh invited Jeong following Crown Prince Mohammed bin Salman's visit to South Korea in June.<br />The minister recently attended celebrations in Seoul for Saudi Arabia's 89th National Day... and met the country's ambassador.<br />He returns to South Korea on Saturday.<br />