Rocket Lab's third launch for the year will carry two US Special Operations Command (Socom) "Prometheus" satellites.
The launch window opens next Thursday.
What is Socom? The US Department says, "The command was formed after the failure of Operation Eagle Claw, a mission to rescue the American hostages in Tehran, Iran, in April 1980. Eight American special operations personnel died in the effort. A study faulted a lack of cooperation among the forces. This led to the Goldwater-Nichols Act of 1987 and on, April 16, 1987, the establishment of Socom.
"The military services man, train and equip their own special operations forces, but when they are used together, they come under the purview of Socom."
Socom's website details everything from its involvement in the1993 "Black Hawk Down" incident in Somalia and says its "Special operators were among the first US forces in Afghanistan after 9/11."