National Defense Reserve Fleet, consists of "mothballed" ships used to provide shipping for the United States during national emergencies.
On 25 June, one of 3 IAF Mil Mi-17 rescue helicopters returning from Kedarnath, carrying 5 Air Force Officers, 9 of the NDRF, and 6 of the ITBP crashed on a mountainous slope near Gauri Kund, killing all on board.
The swift and highly skilled operations of NDRF saved more than 100,000 people trapped in swirling waters of river Kosi.