Manila Rebukes US-South Korea Missile Launch, Tit for Tat with North

US media calls this a "tit-for-tat missile launch" after North Korea fired off their 18th round of missiles this weekend. Manila Chan rebukes this notion and offers the idea this may be more of a flex on China than anything else. Flexing is not diplomacy. Contrasted against Donald Trump's historic visit to and crossing the DMZ, can this US-led show of force lead to any sustainable peace in Asia?