Defense Minister Koizumi says revamp aims to detect threats, speed decisions Japanese Defense Minister Shinjiro Koizumi speaks at a security forum in Tokyo cohosted by Nikkei and CSIS on Oct.

Defense Minister Koizumi says revamp aims to detect threats, speed decisions Japanese Defense Minister Shinjiro Koizumi speaks at a security forum in Tokyo cohosted by Nikkei and CSIS on Oct. 23. (Photo by Hazumu Urushiyama) TOKYO -- Japan's defense minister said the country will fundamentally restructure how it approaches its defense research to speed up the detection of threats and decision-making.