If the 26th MEU is the strategic reserve in Afghanistan then why are they delivering relief supplies?

Isn't the MEU floating off the coast of Pakistan suppose to be the strategic reserve in Afghanistan?  If they are then what happens if something absolutely crazy happens?

Sorry but these extended relief missions are the wrong mission for the Marine Corps...especially when it comes to a country like Pakistan.

This from the Daily Times...

US delivers 2 more choppers

ISLAMABAD: Two more US Marine Corps CH-53E Super Stallion helicopters arrived at the Pano Aqil airbase near Sukkur on Tuesday. These bring to six the number of US military helicopters currently operating out of Pano Aqil airbase. The aircraft are part of the 26th Marine Expeditionary Unit, based at Camp Lejeune, North Carolina. Delivered through a US Air Force cargo plane to a US base in Afghanistan, the helicopters were reassembled and then flown to Pano Aqil on Tuesday. They join 17 other US Navy and Marine Corps helicopters already supporting flood-relief efforts. Two more CH-53E helicopters are scheduled to arrive in a few days. The helicopters would operate in partnership with the Pakistan military throughout the country’s flood-affected areas. To date, US military aircraft have transported over 3.9 million pounds of humanitarian assistance to flood-hit areas and rescued more than 12,000 people. staff report