The brutal killings by the khmer rouge in cambodia in 1979 were stopped by

The primarily goals of the zapatistas of mexico in 1994 were land reform and redistribution. it is also included in their demands to have a greater political and cultural autonomy for the indigenous people of chiapas and the rest of mexico.

Intrusion is the best answer and the newest form.

Ibelieve it was because of the gas act in order to preserve fuel 

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.