North Korean leader Kim Jong Un has unveiled a new naval destroyer, claiming it as a significant advancement toward his goal of expanding the operational range and preemptive strike capabilities of his nuclear-armed military,

By Hyunsu Yim SEOUL (Reuters) -North Korean leader Kim Jong Un attended a ceremony for the launch of a "new multipurpose destroyer", state media KCNA reported on Saturday. The 5,000-tonne warship was equipped with the "most powerful weapons" and built "within 400-odd days perfectly with our own strength and technology",

North Korea's unveiling of the new warship follows its March revealing of a purported nuclear-powered submarine under construction.However, some experts question whether the impoverished and largely isolated nation could develop such advanced capabilities without foreign assistance.