All military personnel ordered NOT to wipe phone data

What is this about? Does the military have absolutely NO right to privacy in communications, etc., especially if it's a personal phone?

LINK

The Pentagon has issued a memo asking personnel not to delete data on their phones, calling it a “solemn responsibility and legal obligation” of all federal employees, both military and civilian.

In accordance with the Department of Defense (DoD) Instructions 5015.02 and 8170.01, personnel must retain text messages that are qualified as records as per the Federal Records Act, the Aug. 3 memo issued by Deputy Defense Secretary Kathleen Hicks said. All mobile device service providers in the DoD are now required to capture and save data on “DoD-provisioned mobile devices” once users turn them on. This order is “effective immediately.”

“Under the Federal Records Act, a record is recorded information that is made or received in connection with the transaction of public business that is preserved or appropriate for preservation by an agency,” the memo stated.

“This information provides evidence of government organization, functions, policies, decisions, procedures, operations, or other official activities, or is of value to the Department.”

The DoD Chief Information Officer (CIO) is working with the Secretaries of the Military Departments and other Component heads to ensure that the guidance is implemented in the Pentagon.

The memo also instructed the DoD General Counsel and the DoD CIO to assess the defense department’s policies and procedures ensuring compliance with the Federal Records Act. They are tasked with reporting back to Hicks with any recommendations within 30 days.