Balloon drops were organized by the South Korean state until the beginning of the Sunshine Policy under the Kim Dae-jung administration. Both Koreas halted psychological warfare for the duration of 2004–2010; in addition to balloons, this prohibited radio broadcasts, billboards and loudspeakers on the DMZ. The North Korean state had originally demanded that as a precondition for the first Inter-Korean summit in 2000, and the request was later accepted by the Kim Dae-jung administration. After the Yeonpyeong incident in 2010, balloon drops were organized by the defense ministry in late 2010 for some time, but they have since been suspended again after having lasted for a year.