In March, the Democratic Peoples Republic of Korea fired its second missile in two weeks from Sinsang-ri over the East Sea. The first test launch in February failed due to faulty parts, according to the Japanese Defense Ministry. The tests were believed timed to coincide with the large-scale South Korea-U.S. joint military drill being held in March, and they coincided with increased tensions along the peninsula and the recent interception of a US E-3 aircraft by DPRK aircraft. In February, another North Korean jet violated the West Sea border with the South. Nonetheless, E-3 ISR flights are scheduled to continue...