South Korea currently has among the longest military service periods in the world, ranked behind Israel, Singapore, and North Korea. In 2010, there was growing public pressure to either shorten the length of conscription or to switch to voluntary military service, and calls from experts for a gradual phasing out of conscription rather than complete abolition. However, in December 2010, after taking into consideration of the 2010 ROKS "Cheonan" sinking and Bombardment of Yeonpyeong incidents, the South Korean government said it would not reduce service periods.