Exam boards said they were offering the English resits free of charge to schools as a response to strength of feeling on the issue.

BBC: Thousands of pupils to resit English GCSEs

America's response should mix military strength with diplomatic subtlety.

ECONOMIST: Asia's balance of power

Under newly inaugurated President Park Geun-hye, South Korea's Defense Ministry, which often brushes off North Korean threats, has looked to send a message of strength in response to the latest comments from Pyongyang.

NPR: SKorea, US Begin Drills As NKorea Threatens War