you think it is responsible for feeding and medicating the entire population of a place it is at war with
The Gaza Strip is a giant prison camp guarded by Israel. From Wikipedia: 'Gaza has been under a full Israeli-led land, sea and air blockade. This prevents people and goods from freely entering or leaving the territory, leading to the territory being often called an "open-air prison".' https://en.wikipedia.org/wiki/Gaza_Strip
I sponsor a child in the Gaza Strip with Action Aid. This is Action Aid's page: https://www.actionaid.org.uk/about-us/where-we-work/occupied-palestinian-territory
Since 2007, Gaza has been living under a blockade, meaning people and goods are prevented from freely entering and leaving Gaza by land, sea, or air. This severely limits basic necessities like food, medicine, and building materials from getting into Gaza.
The blockade makes life near impossible for the 1.8 million people who live there – 1.2 million of whom are refugees. Most people have little or no access to essential resources such as electricity, water, and sewage removal.
Half the population of Gaza is children. Many have experienced conflict for a large part of their life and are battling with severe trauma and emotional distress. And their education has been affected too: over 250 schools were damaged or destroyed in 2014 alone.
The blockade, repeated conflict, and increasing poverty has had a devastating impact on Gaza’s economy. Three out of seven people are unemployed, giving Gaza the highest unemployment rate in the world.
This is the society that Israel is now going to cut off entirely from the outside world. Netanyahu says: 'We will exact a price that will be remembered by them and Israel’s other enemies for decades to come.'
On Monday Israel declared a "complete siege" on the territory - saying electricity, food, fuel and water would be cut off.
According to residents, aid has not reached the enclave since Saturday.
https://www.bbc.co.uk/news/world-middle-east-67051292