'Idiotic Nonsense': China Mocks Taiwanese 'Sea Monster'; Here's All About Homemade Submarine

Taiwan has unveiled its first-ever domestically built submarine to boost its military deterrence in the face of a growing threat from Beijing. The launch ceremony was attended by the self-ruling island’s president, Tsai Ing-wen. China, on the other hand, has criticised the move and called it "idiotic nonsense". Watch this video to know more.