Egyptians.

This is coolbert:

From DEBKAfile and only as you might find reported by DEBKA:

Egyptians return to Yemen for the first time in fifty years!

"First Egyptian troops in Yemen to fight Houthi rebels"

10 September.

"The first 800 Egyptian ground troops sent to fight in Yemen will broaden the Saudi-led Arab coalition battling the Iranian-backed Houthi insurgency, arriving with artillery and tanks. Wednesday, a thousand Qatari troops landed in Yemen, to be followed by ground troops from Jordan, Morocco, Sudan and Kuwait."

Shia versus Sunni. As it has been ever since the time of the Battle of Karbala in 680 (61 AH). And perhaps always will be.

coolbert.