American and other mercenaries in the service of Gulf regimes

"The Emirates had a brigade of 1,800 soldiers from Latin America which provided 450 troops now arriving in Yemen. It seems there are also going to be hundreds of other foreign mercenaries — Sudanese and Eritrean soldiers — brought into Yemen. These can be viewed as a second generation of foreign mercenaries hired by the countries of the Arabian Peninsula. In the first generation, still powerful, in 1975 Saudi Arabia brought in Vinnell Corporation, an American defense contractor, to train the “Saudi Arabian National Guard.” "The little-known Vinnell is now owned by Northrop Grumman."