The Israeli military on Wednesday signaled it was prepared to immediately launch its planned offensive in southern Gaza’s Rafah, expanding nearby areas for civilians to find shelter amid rampant concern over the fate of the 1.5 million Palestinians crowded into the city.

Israel is thought to be readying a push into Hamas’s last major stronghold into the Strip should efforts to reach a truce deal this week fall through, though Prime Minister Benjamin Netanyahu has vowed that Israel will launch an offensive into the city regardless.

Lt. Col. Avichay Adrae, the Israel Defense Force’s Arabic-language spokesperson, said recently that the army was enlarging a designated “humanitarian zone” in the southern Gaza Strip.

The current zone, in the al-Mawasi area on the coast, is being expanded into some areas of Khan Younis, reaching as far as the outskirts of the Deir al-Balah camp in central Gaza. The area is near where the US is building a dock for shipments of aid by sea into the Strip, providing an alternative to land routes into Rafah and northern Gaza and international airdrop missions.

Adraee, in a post on the X social media site Wednesday, said humanitarian aid “will flow” to the expanded humanitarian zone, part of “diligent humanitarian efforts to improve the humanitarian situation inside the Gaza Strip, because our war is against Hamas, not against the people of Gaza.”

A report detailed plans for a separate “safer zone” to be established in central Gaza, Army Radio reported Wednesday.

The report said the additional zone, which would work similar to the expanded al-Mawasi zone, would be located on the outskirts of Buriej and Nuseirat, close to the IDF’s Netzarim Corridor.

The report did not explain what would make the zone “safer” than the other humanitarian zone.

Israel says it hopes civilians will leave Rafah for the humanitarian zones once fighting on the ground in the city begins.

The zones would serve Palestinians fleeing the fighting in Rafah once the IDF’s offensive there commences.

Military sources told The Times of Israel that the IDF was fully prepared for the Rafah operation, and was only awaiting a decision by the government.

However, Netanyahu has come under heavy international pressure, including from the US, to hold off on the offensive.

US President Joe Biden’s administration has called a move into the southern Gaza city a “red line” without a credible plan to evacuate civilians, which Washington says Israel does not have.

In a meeting Wednesday with Netanyahu, US Secretary of State Antony Blinken “reiterated the United States’ clear position on Rafah,” State Department Spokesman Matthew Miller said.

Blinken added later Wednesday that the US position on Rafah had not changed, saying a military offensive was not necessary to deal with Hamas.

“The world has been appealing to the Israeli authorities for weeks to spare Rafah, but a ground operation there is on the immediate horizon,” UN aid chief Martin Griffiths said in a statement Tuesday. “The simplest truth is that a ground operation in Rafah will be nothing short of a tragedy beyond words.”

If the order is given, the operation would begin with the military calling on Palestinians to evacuate the Rafah area to the designated safe zones, the military sources said.

Israeli officials have said Hamas has six remaining battalions in the Gaza Strip, including four in the southern city of Rafah: Yabna (South), Shaboura (North), Tel Sultan (West) and East Rafah. Two more Hamas battalions remain in central Gaza, in the Nuseirat and Deir al-Balah camps.

The IDF has so far operated across northern Gaza and Gaza City, in some parts of central Gaza, and in southern Gaza’s Khan Younis, saying it has dismantled the 18 Hamas battalions there.

It has also carried out airstrikes in Rafah. Tank fire echoed from the Gaza Strip on Wednesday as Blinken visited an aid inspection point at the Kerem Shalom crossing near Rafah, a sign of the ongoing fighting in the Strip, even as troops have pulled back from most areas of the enclave aside from a corridor in central Gaza.

The IDF has estimated that some 150,000 Palestinians have already moved out of Rafah to the Khan Younis area, after the military withdrew from there last month.

Israel was still awaiting answers from Hamas on the latest proposal for a hostage deal Wednesday night. Should there be a truce, Israel is expected to postpone the Rafah offensive, but not outright cancel it.

If a truce with Hamas falls through, the Rafah operation would be carried out by the IDF’s 98th and 162nd divisions, with the military saying Tuesday that both had undergone intensive preparations in recent days for future offensives in Gaza.

The 162nd Division had operated in Gaza for six months until last week. It had most recently been tasked with the Netzarim Corridor in central Gaza. The 98th Division had spent four months operating in southern Gaza’s Khan Younis, until it was withdrawn earlier this month.

Ahead of the looming Rafah operation, the IDF said it had “significantly increased” the amount of humanitarian aid entering the Gaza Strip, and that it would “continue to scale up even more.”

As part of those efforts, Israel on Wednesday reopened the sole crossing on the northern edge of the Gaza Strip for the first time since it was destroyed by Hamas on October 7, allowing aid trucks to pass through the Erez checkpoint following US demands to do more to get aid into the Strip.

Reopening the Erez crossing has been one of the main pleas of international aid agencies for months, to alleviate the humanitarian situation which is believed to be most severe among the hundreds of thousands of civilians in the enclave’s northern sector.

Col. Moshe Tetro, head of Israel’s Coordination and Liaison Administration for Gaza, said he hoped the crossing would be open every day, and help reach a target of 500 aid trucks entering Gaza daily. That would be in line with pre-war supplies entering the enclave and far more than it has received during the last seven months.

“This is only one step of the measures that we took in the last few weeks,” he told reporters.

Hamas has been considering a plan for a 40-day ceasefire and the exchange of scores of hostages for larger numbers of Palestinian prisoners.

Suhail al-Hindi, a senior Hamas official, told AFP that the terror group would “deliver its response clearly within a very short period,” although he would not say precisely when that was expected to happen.

The military said earlier Wednesday that the Israeli Air Force struck numerous sites belonging to terror groups across the Strip over the past day, as troops continued to operate in the Netzarim Corridor area.

The corridor, built around a 6.8-kilometer-long road south of Gaza City, enables the IDF to carry out raids in northern and central Gaza while allowing Israel to control access to the north for Palestinians seeking to return after fleeing south. It also enables Israel to coordinate deliveries of humanitarian aid directly to northern Gaza.

The IDF said targets hit by fighter jets over the past day included weapon depots, buildings used by Hamas and Palestinian Islamic Jihad, and rocket and mortar launching positions, including those used to target troops operating in Gaza.

Troops of the 99th Division operating in central Gaza also called in several airstrikes on operatives who were launching rockets at the forces, the IDF said.

In one incident, the IDF said reservists of the division’s Yiftah Brigade identified several operatives moving toward troops in central Gaza and called in an airstrike against them.

Shortly after the strike, another cell was spotted planting a bomb in the area, and it too was struck by an IAF aircraft, the military added.

The Yiftah Brigade troops also discovered a cache of weapons, military equipment and documents in a building in their area of operations.

The army also said a group of Palestinians launching mortars at Israeli troops in the central Gaza Strip were killed in a drone strike.

Additional infrastructure in the area of the launch and two more operatives at a site near the troops were also hit in strikes, the IDF added.

Israel’s ground operation in Gaza followed three weeks of aerial bombardments in the wake of the Hamas-led massacre on October 7, when more than 3,000 Palestinian terrorists stormed the border into southern Israel and killed some 1,200 people — mostly civilians — and kidnapped 253, amid many acts of brutality and sexual assault.

Israel declared war on Hamas in response, launching an offensive aimed at toppling the Gaza-ruling terror group and securing the release of the hostages.

The IDF has said 263 soldiers have been killed and another 1,602 have been wounded during fighting in Gaza.

The Hamas-run health ministry in Gaza has claimed that since the start of the war, 34,568 people have been killed, mostly civilians. These figures cannot be independently verified and, according to Israel, include at least 13,000 Hamas fighters. Another estimated 1,000 terrorists were killed in Israel during the October 7 onslaught.

Agencies and Lazar Berman contributed to this report.