"North Korea is the only nuclear-armed country in the world with which we do not have a military-to military exchange of information," the letter signed by 33 lawmakers read.
The legislators wrote that Trump should prioritize this form of communication as the first step that the two nations could take toward avoiding a conflict.
Meanwhile, the United States is committed to employ all military capabilities to deter possible aggressive actions by Pyongyang, the State Department said in a release on Thursday following the second US-South Korea meeting of the Extended Deterrence Strategy and Consultation Group (EDSCG).
"During the discussions, both sides agreed on the value of the EDSCG as a high-level consultation mechanism and committed to continue Alliance coordination mechanisms on extended deterrence issues," the release said. "The United States also reiterated its ironclad and unwavering commitment to draw on the full range of military capabilities to deter potential acts of DPRK aggression."
The Wednesday meeting was attended by the South Korean Ministry of Foreign Affairs’ First Vice Minister Lim Sung-nam, Ministry of National Defense’ Vice Minister Suh Choo-suk, as well as US Under Secretary for Political Affairs Thomas Shannon and US Deputy Under Secretary for Policy David Trachtenberg.
The officials agreed to hold another meeting of the EDSCG in the near future, according to the State Department.