The first round of negotiations between the U.S. and Iran, scheduled to be held at a mountaintop resort in Switzerland, has been postponed until further notice. Vice President J.D. Vance was slated to appear at the resort Friday but abruptly canceled the trip Thursday night.

The White House said logistical issues were the primary reason the talks were called off. The situation was further complicated by ongoing Israeli strikes targeting Iran-backed Hezbollah in Lebanon. Tehran has said the strikes must end for negotiations with the U.S. to proceed. 

The postponement comes as bipartisan criticism mounts in Washington over the U.S.-Iran memorandum of understanding that has established a 60-day ceasefire window for in-depth negotiations over Iran’s nuclear program.

Senate Armed Services Chairman Roger F. Wicker and other Republicans have raised concerns that Iran will use economic relief provided under the agreement to continue funding its terrorist proxies such as Hezbollah.

Lt. Gen. Chris Mohan, the commanding general of U.S. Army Materiel Command, offered new insight into the Army’s expanding use of 3D printing during an exclusive interview on the latest episode of the Threat Status weekly podcast that dropped Friday morning. 

“We have 3D printed barracks at Fort Bliss. We did this several years ago. Soldiers are living in them now. We’re doing 10 more barracks there. [And], we’re getting ready to print an entire complex at Fort Polk,” Gen. Mohan said. “We will cut the ribbon on that at the end of this month.

“We have the same vision of being able to 3D print contingency facilities, with an eye on Indo-Pacom,” he said in reference to U.S. military operations in the Pacific. “Instead of hauling building materials, we would haul the machinery to do it and then use local aggregate to build things like munition storage facilities.”

Defense Secretary Pete Hegseth said in a speech to European defense ministers on Thursday that the Pentagon is starting a six-month review of U.S. force posture basing in Europe to ensure that America’s allies spend more toward eventually taking the lead role in their own defense.

Mr. Hegseth, during his speech at NATO headquarters in Brussels, also lambasted alliance members who refused to support the U.S. in its military operations against Iran.

The U.S. contributes about $933 million annually to NATO, which covers about 15% of the total operational costs for the alliance. Mr. Hegseth warned that American funds could be reduced if NATO members won’t increase their own financial and military support to the alliance.

The memorandum of understanding signed this week by Mr. Trump and Iranian President Masoud Pezeshkian “undermines the goals Operation Epic Fury set out to achieve,” according to The Washington Times Editorial Board.

“Let us start with obliterating Iran’s missiles and production. Iran’s war industry undoubtedly sustained significant damage, but not all its missiles were destroyed,” the board writes, adding that the administration has “shifted its goalposts so dramatically that the president said [on Wednesday] it is ‘a little bit unfair’ to tell Iran that it cannot have missiles, as other countries have them.

“As for the Iranian navy, the administration has repeatedly told the American public that it is sitting on the bottom of the Strait of Hormuz,” the board writes. “If that were the case, then why would the U.S. need a memorandum of understanding with Iran to open the strait?”

On June 11, Beijing designated the Taiwan Strait and several areas around it as “coastal waters,” a component of internal waters under international law. Retired U.S. Navy Capt. Carl O. Schuster writes that “this cannot be ignored.”

“The U.S. and international community must immediately reject that claim,” Mr. Schuster writes in a column in The Washington Times. “Otherwise, Beijing will interpret the silence as tacit acceptance.

“Silence only encourages more aggression,” he writes. “Past American silence after China seized or sealed off several of its neighbors encouraged Beijing to cement its control of those waters by constructing garrisons on the seized territories.”

• June 23 — Coffee Talk with Gen. Ronald Clark, Commander of the U.S. Army Pacific, Association of the United States Army

• June 23 — From Insight to Policy: Partnering with African Expertise to Inform U.S.–Africa Policy and Engagement, Center for Strategic & International Studies

• June 24 — IndoPac 2026 | Naval Dominance: Shipbuilding, Autonomy & C2, Threat Status Events

• June 25 — Navigating Competition in the Central Arctic Ocean, Hudson Institute

• June 30-July 1 — AWS Summit, Artificial Intelligence Technologies in the Public Sector, Amazon Web Services

• July 8-9 — Military Robotics and Autonomous Systems USA Conference, SAE Media Group