Naval ships deployed in the Indian Ocean region are visiting ports of friendly foreign countries and spreading the message of 'Vasudhaiva Kutumbakam' on International Day of Yoga forming an 'Ocean Ring of Yoga', the Indian Navy said on Wednesday. Yoga day events and activities are being conducted on Indian naval ships, including Kiltan, Chennai, Shivalik, Sunayna, Trishul, Tarkash, Vagir, Sumitra and Brahmaputra -- all of which are deployed in the Indian Ocean Region.