"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
The experts who managed the original Marshall Plan say Afghanistan needs a commitment of at least $5 to $10 billion over 5 to 10 years, coupled with occupation forces of 250,000 Allied soldiers to keep the peace throughout the country.