Department of War actually isn't official as far as I know. Of course you can call it what you want but I believe an official name change actually requires an act of congress.

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dizhn 4 hours ago | parent [-]

I checked wikipedia today. It's not a name change. It's an additional official name. One of many weird things Trump has done.

	▲	tombert 4 hours ago \| parent [-]
		Fair enough. I'm kind of surprised he didn't rename it to "Department of Trump" or something.