Let's just call a spade a spade. This is the Trump administration recommending bringing back the use of internment (concentration) camps.
From the Washington Post:
“The Trump administration is making preparations to hold immigrant children on military bases, according to Defense Department communications, the latest sign the government is moving forward with plans to split up families who cross the border illegally.
According to an email notification sent to Pentagon staffers, the Department of Health and Human Services (HHS) will make site visits at four military installations in Texas and Arkansas during the next two weeks to evaluate their suitability to shelter children.”