The government will dispatch police personnel to Turkey to train Afghan police officers, using police training facilities in Turkey. Japanese police are expected to teach Afghan counterparts how to do crime lab work, fight drug trafficking and set up a koban system, among other things. To both improving security in Afghanistan and indirectly supporting the U.S. government, which is bearing a huge financial burden from its operations in Afghanistan.
In my opinion, It is good idea to train military and support because the military of country is the main factor to protect the country.
LINK: http://www.yomiuri.co.jp/dy/national/T100815001483.htm