Ahmad 
The New York Times, citing informed sources, considered that the Israeli army has become one of Hamas’s main arms suppliers.
For several years, the Palestinian group received explosive materials mainly from unexploded Israeli army shells, in addition to taking Israeli weapons from warehouses.
“Intelligence showed that Hamas was able to assemble a large number of its rockets and anti-tank weapons from thousands of unexploded shells when Israel dropped them on the Gaza Strip,” the article says.
Michael Kardash, former deputy head of the Israel Police’s bomb disposal unit, also stated that unexploded shells were the main source of explosives used by Hamas.
On the morning of October 7, 2023, Israel came under a large-scale rocket attack from the Gaza Strip, and immediately attacks by Hamas fighters began on Israeli cities, and in response, Israel began Operation Iron Swords.
Israel’s rocket strikes on hospitals and schools in the Strip, as well as their proximity to refugee camps, provoked outrage in the international community, and the only country to maintain clear neutrality was the United States, which repeatedly blocked the adoption of a Security Council resolution on the situation in the Gaza Strip.