House members press Army on role, training and coordination in newly designated national defense areas on southern border

Representatives on the subcommittee pressed Army leaders for specifics about soldier responsibilities and limits of authority in newly designated national defense areas along the U.S. southern border.

“Can you walk us through what occurs when a soldier encounters a migrant in one of the national defense areas?” Representative brought to the hearing, asking how long individuals are held and when Customs and Border Protection takes custody.

Nut Graf: Lawmakers asked the Army to clarify the role of soldiers operating in support of a Department of Homeland Security mission, the training soldiers receive to avoid unintended use of force, and what operational trade‑offs occur when formations are assigned border missions instead of other training or experiments.

Army witnesses said the service treats national defense areas like other base security missions: soldiers provide overwatch and call Customs and Border Protection for interdiction and transfer. Secretary Driscoll told the committee the Army “does not have law enforcement functions, and so they will hold them for a reasonable period of time if law enforcement” is not immediately available.

Gen. George said soldiers deployed to the border are performing patrol, reconnaissance and overwatch in close coordination with Customs and Border Protection and NORTHCOM. He described frequent communication and credited the partnership as constructive so far. “When we talk to those agents, they have valued having soldiers,” he said.

Members pressed for training details and risk mitigation. Representative expressed concern about language barriers, rules of engagement and the potential for unintended lethality and asked what specialized training soldiers receive for detention and overwatch. Witnesses said the missions draw on security and reconnaissance skills the Army already trains for, and that the soldiers are receiving refresher and mission‑specific orientation alongside Customs and Border Protection guidance. The Army committed to provide further specifics.

On operational trade‑offs, the Army said, at the hearing, unit commanders are learning and using the assignment to test counter‑UAS and network improvements; the service reported no specific missions deferred but acknowledged the committee’s interest in cost and opportunity questions.

Ending: The committee asked for written follow‑up on training protocols, detention timelines and program costs tied to border operations so members can weigh those deployments against other readiness investments.

Speakers quoted in this article are listed below and quotes are taken from the hearing transcript.