This approval coincides with the latest legal challenges against Germany by human rights groups concerned with the humanitarian situation in Gaza.
Blinken raised the issue during his conversations in Israel with Prime Minister Benjamin Netanyahu and Defense Minister Yoav Gallant.
Attendees say that the official stressed that Israel is a member of a tight circle of allies that the administration won't contest.
State Department spokesperson Matthew Miller also said that Israel has a right to target Iran-backed terrorist group Hezbollah even as it may be hiding in civilian buildings in Lebanon.
The UN and international organizations are condemning Israel's strategy of limiting humanitarian aid to Gaza as part of its effort to weaken Hamas.
The IDF has stated that it is taking measures to facilitate humanitarian aid while continuing its efforts against Hamas forces.
"If we don't do anything, then Lebanon tomorrow could resemble what Syria has become," Jean-Noel Barrot told lawmakers in parliament.
The WFP launched an emergency operation to aid 1 million people in Lebanon amid escalating conflict with Hezbollah, seeking $105 million in support.
One possible plan is for the IDF to carry out aid distribution itself, however, IDF Chief of Staff Lieutenant General Herzi Halevi allegedly opposes this.
IDF troops identified a vehicle that pulled to the front of a line of aid trucks and an armed individual exiting the vehicle.