The announcement means Japan will be joining other members of the "coalition of the won'ting" such as Italy in cutting and running from the terrorists. At least, by contemporary US political standards, that's what they're doing.
The US-led coalition forces have said that as Iraqi forces stand up, they'd stand down. Iraqis are now taking over from the Japanese. One wonders what the contingency plans are for when coalition members step out.The ever-tenuous situation in Iraq is not going to get any easier with fewer personnel on hand to deal with it. So tell me, Dear Leader, what's the plan for filling the gap? Or would admitting we don't have one be giving too much away to the enemy?