That is an unsettling escalation, especially for what is likely part publicity stunt . MOABs were first tested in 2003 but were never used it in Iraq or Afghanistan by Bush or Obama.
You can't tell me that isn't dick waving on Trump's part.
I can just picture the meeting:
Trump: I want to show Turkmenistan that we mean business.
Joint Chiefs of Staff: Do you mean Afghanistan?
Trump: That's what I said. Afghanistan. Let's show them we can't be messed with. What's the BIGGEST bomb we have?
JCS: ...Do you mean nuclear?
Trump: That's not off the table, but what's the biggest NON-nuclear bomb we have?
JCS: That'd be the MOAB, the Mother of All Bombs.
Trump: That's perfect. PERFECT!
JCS: Well, it's a surface level bomb. The Taliban and any Al Qaeda camps work out of cave networks…
Trump: No, it's PERFECT. Just use the MOAB on them, and let's see what they think of that!f
Edit: Not sure a compound bombing planned months ago is really something to get too worried about wrt to trumps world domination tour, especially since it probably stopped at the majcom level.
Oh.
