Retired Army Gen. Jack Keane appeared on Fox News Friday to discuss ongoing tensions between Israel and Iran following Iran’s retaliatory missile strikes.

Israeli forces launched strikes against Iran Thursday, targeting top Iranian officials, including Islamic Revolutionary Guard Corps leaders and nuclear scientists as well as Iranian nuclear sites. During an appearance on “The Story With Martha MacCallum,” Keane discussed the missile attacks launched by Iran in retaliation for Israel’s strikes. Iran’s first wave involved about 100 ballistic missiles, and only five to seven of them breached Israel’s defenses.

“Israel expected the targets to shift from October, which were Air Force bases in the desert and the Mossad headquarters to population centers. And we’re seeing the evidence of that here. The second wave, 50 missiles and no penetration as of this moment. I believe another wave will be coming as well,” Keane said. “The fact that the second wave of Iranian retaliation was less than the first is a good sign. It shows you that they’re having difficulty getting those launchers in the position. And obviously Israel is also conducting attacks inside of Iran as we speak. So that’s what’s happening here is the retaliation attack by Iran, and you’re likely going to see more.”

Keane said Israel expected a retaliatory attack after their recent strikes on Iran.

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“It had so much to do with what their attack on Iran looked like. While taking down the air defense systems was priority one so they would have air superiority, the remaining air defense systems that they didn’t take down in October, taking down leadership targets that would clearly cause them command and control issues,” Keane said.

“The center of gravity certainly is the nuclear enterprise itself.”

Turning to Iran’s response, Keane said Israel’s defense systems had already been tested back in October, when Iran launched 200 missiles. (RELATED: Inside The Clandestine Israeli Operation To Kneecap Iran)

“But complementing that was the ballistic missiles. Back in October, Iran fired 200 of those, and 40 penetrated the system, and the Israelis considered that as they overwhelmed the arrow and the THAAD system and the multi-layered defense system that was established,” Keane said. “So what they focused on here was taking as many of the launchers of these systems down during their initial four waves of attack that’s been unfolding for the last 24 hours.”

“We have seen so far in this first wave of Iranian retaliation attack using ballistic missiles is about 100 missiles, five to seven of them did penetrate, and the targets did shift,” Keane said.

Iran launched a retaliatory attack against Israel Friday following Israel’s assault on Tehran’s leadership and nuclear facilities. The Israeli military said dozens of missiles were fired from Iran, causing explosions in multiple cities, while Israeli interceptors worked to neutralize the incoming missiles, leaving at least five people wounded.

Israeli Prime Minister Benjamin Netanyahu said Thursday that Israel will persist in bombing Iran until it eliminates the “threat” posed by the nation. In a speech lasting over seven minutes, Netanyahu condemned the “tyrants of Tehran” for seeking Israel’s destruction and said Iran has reportedly advanced its uranium production to create nine atomic bombs.

Trump broke his silence following Israel’s bombing of Iran and said the U.S. had prior knowledge but was not involved in the operation.

“Iran cannot have a nuclear bomb, and we are hoping to get back to the negotiating table. We will see. There are several people in leadership that will not be coming back,” Trump said.

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