Pence vows 'overwhelming' response to North Korea

The United States will counter any North Korean attack with an "overwhelming and effective" response, Vice President Mike Pence vowed Wednesday, as he stood on the deck of a massive American aircraft carrier docked in Japan.Donald Trump's deputy is in the region to reassure allies fretting over Pyongyang's quickening missile programme, and its apparent readiness to carry out another banned nuclear test in its quest to develop an atomic weapon that can hit the US mainland.Pence, whose visit start