Israel forces aid organizations to purchase food from Egypt and prevents them from buying it in Israel, which would allow for a more efficient and rapid transfer of goods. Israel also prohibits the private sector in Gaza from purchasing food, which could significantly increase supply. Although Israel recently allowed trucks in through Kerem Shalom Crossing, too, which is designed for commercial transports, this was merely a token addition that has failed to alleviate the hardship.
Aid organizations are struggling to operate under current conditions, and most of the limited aid allowed in remains in Rafah instead of reaching residents throughout the Strip. Martin Griffiths, the UN Under-Secretary-General for Humanitarian Affairs and Emergency Relief Coordinator, listed several reasons why aid cannot be efficiently distributed. Among other things, he noted that trucks are inspected several times before Israel allows them into Gaza, and even then, long lines form due to the conditions at Rafah Crossing. The little food that does get in is very difficult to distribute due to the constant bombings, destroyed roads, frequent communication blackouts, and shelters overflowing with of hundreds of thousands of IDPs crowding into smaller and smaller areas.
Israel can, if it so chooses, change this reality. The images of children begging for food, people waiting in long lines for paltry handouts and hungry residents charging at aid trucks are already inconceivable. The horror is growing by the minute, and the danger of famine is real. Still, Israel persists in its policy.
Changing this policy is not just a moral obligation. Allowing food into the Gaza Strip is not an act of kindness but a positive obligation under international humanitarian law: starvation as a method of warfare is prohibited
Starving the members of the etnic group they think of as "human animals" to death is cheaper than using Zyklon B, and so is blowing them up with 2000lb bombs because America provides them for free.