It looks like the TTX last week was a success because they plan to do another one later this year:
Korean Ambassador to U.S. Cho Tae-yong at a press conference held in Washington on Monday. [NEWS1]
Korea’s ambassador to the U.S. said South Korea and the United States are currently working on a joint tabletop exercise (TTX) that goes beyond military maneuvers to embrace diplomacy, information and economics.
The expanded exercise reflects the alliance’s move toward “extended deterrence” against threats from North Korea.
Ambassador Cho Tae-yong told reporters in Washington on Monday that the two countries took part in the U.S. Defense Department’s 8th Deterrence Strategy Committee Table-Top Exercise (DSC TTX) at the Pentagon on Feb. 22. (…..)“We plan to pursue a TTX in which several agencies from each country will participate in the near future,” Cho said.
Joong Ang Ilbo
“We have reaffirmed the commitment to extended deterrence that utilizes all defense capacities, including nuclear weapons, as pledged by President Joe Biden during the South Korea-U.S. Summit in May last year.”
He added, “The two sides are closely cooperating to strengthen the alliance’s executing power.”
You can read more at the link.