Omani Minister Responsible for Defense Affairs Sayyid Badr bin Saud bin Harib Al-Busaidi left here today for the Republic of Singapore on a several-day official visit. The visit comes as per an invitation received by Sayyid Al-Busaidi from Dr. Ng Eng Hen, Minister of Defense in the Republic of Singapore to take part in Singapore Airshow 2014, Oman News Agency (ONA) reported.