AMNA NAWAZ: Welcome to the "NewsHour."

Today, the Israeli military dismissed two# officers and reprimanded three more senior## officers it said were responsible for the killings# of seven aid workers from World Central Kitchen## earlier this week.

The Monday attack has put even# greater scrutiny on Israel's tactics in Gaza.

GEOFF BENNETT: Under heavy pressure from# President Biden, Israel opened three## aid crossings into Gaza that it had been# resisting.

The president also sent letters## to the leaders of Egypt and Qatar asking# them to push Hamas toward a hostage deal.

Here's Nick Schifrin.

NICK SCHIFRIN: Israel is calling it# a grave mistake, three precise hits## on vehicles filled with aid workers# who are trying to feed the hungry.

Today, Israel released an unusually swift# investigation blaming mistaken identification,## errors in decision-making and decisions contrary# to the standard operating procedures.

And the IDF## fired the brigade fire support commander, a major,# and the brigade chief of staff, a reserve colonel.

And it reprimanded more senior# officers, the brigade commander,## the division commander, and# the Southern Command commander.

Rear Admiral Daniel Hagari# is the top IDF spokesman.

REAR ADM. DANIEL HAGARI, Spokesperson,# Israeli Defense Forces: This is a tragedy.## It was a terrible chain of errors# and it should never have happened.

NICK SCHIFRIN: The IDF says it# tracked the convoy as it left## the World Central Kitchen's pier.

Along the coast,## the IDF says an armed gunman boarded the convoy# and surveillance spotted a second gunman.

Farther south, the convoy split.# And that's when the IDF admits one## of its commanders mistakenly assumed that# Hamas gunmen remained inside the convoy.

REAR ADM. DANIEL HAGARI: This# operational misidentification## and misclassification was the# result of internal failures.

NICK SCHIFRIN: Between 11:09 and# 11:13 p.m.

The IDF says it launched## three strikes on three vehicles# separated by more than a mile,## even though they rode along the coastal# road designated for humanitarian workers.

# REAR ADM. DANIEL HAGARI: The soldiers conducted# the strike without any awareness that these## were in fact WCK vehicles.

At the time, they# were certain that they were targeting Hamas.

NICK SCHIFRIN: But the U.N. today and others say# Israel's targeting problems run deeper.

The war in## Gaza has been the deadliest ever for humanitarian# workers.

The U.N. says some 200 have been killed.

MASTER SGT.

WES BRYANT (RET.

),# U.S. Air Force: We can see that## this is not really an exce.. NICK SCHIFRIN: Retired Master Sergeant Wes# Bryant spent 20 years in the U.S. Air Force,## where he called in airstrikes# and led targeting cells.

MASTER SGT.

WES BRYANT (RET.

): I think that,# when you have an overall culture of what seems## to be callousness and indifference towards# civilian harm, disregard for international## humanitarian law and an overaggressiveness,# really an emotional campaign that's being## waged by the IDF, the probability of these# kind of targeting mistakes increases tenfold.

NICK SCHIFRIN: The U.S. is also pressing# Israel to help alleviate what the U.N.## calls looming famine.

And after President# Biden pressured Israeli Prime Minister## Benjamin Netanyahu in yesterday's phone# call, Israel will open three new access## points for humanitarian aid in Gaza,# Erez, Kerem Shalom, and the Ashdod port.

Secretary of State Antony Blinken.

ANTONY BLINKEN, U.S. Secretary of# State: The real test is results.## And that's what we're looking to see in# the coming days and in the coming weeks.

NICK SCHIFRIN: Israel has blamed the U.N.# for food shortfalls, but is accepting## responsibility for this strike, hoping not# to lose the support of its closest ally.

For the "PBS NewsHour," I'm Nick Schifrin.