Some 100 Israeli combat aircraft carried out a massive simultaneous assault on Hezbollah targets across Lebanon early Sunday morning. They dropped thousands of bombs in order to thwart a large planned Hezbollah attack, as well as damage the terrorist militia’s capability to further threaten the Jewish state.

While almost no Israeli will balk at the decision to hit Hezbollah in this manner, and in fact many believe Israel must press the attack, there’s also a price tag, and sooner or later the taxpayers will have to foot the bill.

So, how much did Sunday’s necessary, but costly aerial assault actually cost?

The IDF and the government of Israel are of course not releasing official figures. But it is possible to make a fairly educated guess.

Experts who spoke with the Israeli financial publication Globes say that the total cost was close to half a billion shekels.

“The attack against Hezbollah likely cost around $120 million (close to half a billion shekels),” a senior official in the defense industry told Globes. “Calculating around 4,000 JDAM bombs at $25,000 each totals approximately $100 million. Operating some 100 aircraft for six hours is estimated at an additional $18 million, and operating drones for about 12 hours costs about $1.08 million.”