Section 620I of the Foreign Assistance Act COMPELS the President of the United States to suspend ALL offensive military assistance to a country if the President is aware of evidence that the country in question is blocking humanitarian aid to those in need of it.
"No assistance shall be furnished under this chapter or the Arms Export Control Act to any country when it is made known to the President that the government of such country prohibits or otherwise restricts, directly or indirectly, the transport or delivery of United States humanitarian assistance."