South Korea's Defense Ministry said Tuesday that the US administration won't take any substantive military action against North Korea without "close cooperation" with Seoul.
It cited the spirit of the bilateral alliance that dates back to the 1950-53 Korean War. "(Such a military operation, if any,) will be conducted under the robust South Korea-US combined defense posture based on their close cooperation," the ministry's spokesman Moon Sang-gyun said at a press briefing. 
He was responding to mounting concerns that the Trump government may seek a pre-emptive attack on the North similar to its recent airstrikes against Syria, according to (Yonhap) news agency. The US fired 59 Tomahawk cruise missiles last week at an air base in Syria in response to the Syrian regime's use of chemical weapons. 
Many observers construed it as a tough warning message to the North's Kim Jong-un regime bent on developing nuclear and missile programs. Some also raise the possibility that the US may consider a "decapitation" strategy, a targeted attack to remove the enemy's leadership. 

Source: QNA