[retsibsi]

(I'm not a lawyer, but) I don't see the ambiguity. It's a normal grammatical sentence if parsed this way:

The Department of War may use the AI System for all lawful purposes, consistent with

- applicable law

- operational requirements

- and well established safety and oversight protocols.

Whereas if I try to parse it as a list of 4 items, it's not grammatical:

The Department of War may use the AI System

- for all lawful purposes

- consistent with applicable law

- operational requirements

- and well-established safety and oversight protocols.