Secret IDF Unit 504 interrogated 3,100 terrorists, IDF attacked 20,900 targets in 2025
The IDF additionally announced that it launched 20,900 attacks on targets across all fronts and killed around 2,100 Hamas terrorists this past year in newly unveiled 2025 military statistics.
The military’s intelligence Unit 504 (“the IDF’s Mossad”), responsible for covert and clandestine operations, interrogated 3,100 terrorists over the course of 2025, the IDF revealed on Wednesday.
Of the terrorists, 1,600 were interrogated in Israeli detention centers, and another 1,500 were interrogated in real-time in the field shortly after being captured.
In the field, interrogations are extremely difficult and complex as the interrogators are often not operating in a safe space, and the detainees are frequently physically or emotionally destabilized by a recent physical battle.
However, such field interrogations can be invaluable in leading to intelligence that can help thwart additional terror attacks in real-time and enable the capture of top terrorist commanders before they have time to change their hideouts, as well as the seizure of dangerous weapons before they can be transferred. During the Israel-Hamas War, it led to the locations of hostages, both living and deceased, before they could be moved.
Interrogations in detention centers can also lead to critical intelligence gains, though usually as part of longer-term projects and strategic goals.
The IDF 13th Golani Battalion together with the 7th Armored Brigade seen withdrawing their positions in Gaza, back into Israel October 10, 2025. (credit: Oren Cohen/Flash90)
Broader IDF statistics
Regarding wider issues, the IDF disclosed that the total number of attacks it undertook on all fronts during the year was 20,900.
Of those, 19,530 targets were in Gaza, with the remainder in Lebanon, Syria, Iran, Yemen, and the West Bank.
In Gaza, the IDF killed four brigade-level commanders out of a total of five – among them, replacements for brigade commanders killed by the IDF in 2023-2024 – 14 battalion-level commanders, and 53 company-level commanders.
In fact, the only surviving Hamas brigade commander from the pre-Israel-Hamas War era is its current leader, Az al-din al-Hadad, the former Gaza City brigade commander.
The IDF refused requests to provide an updated total number of Hamas members killed in 2025. However, in August, it was reported that the number was around 2,100, and, given that there were few battles from then until the war ended in October, that number likely has only risen by a few hundred, at most.
In Lebanon in 2025, the IDF killed around 380 Hezbollah terrorists while attacking around 950 targets overall.
The IDF also said that Hezbollah violated the 2024 ceasefire 1,920 times, though it was unclear how many of these violations were blatant moves in southern Lebanon or more subtle moves north of the Litani River.
Next, the IDF said that it had killed 230 terrorists in the West Bank.
Moreover, it said it had arrested 7,400 Palestinians, though only 1,190 were said to be linked to Hamas – raising some questions about how seriously dangerous some of the detainees were.
There are other terror groups besides Hamas, but at the start of the war, close to 40-60% of those arrested were linked to Hamas.
The IDF did not report on how many of the arrestees were subsequently handed back to Hamas during the hostage exchanges, in which Israel released thousands of Palestinian security prisoners, nor on how many of those arrested would be held for lengthy periods.
Notably, the IDF said that it had confiscated NIS 16,480,000 from Palestinian terrorists in the West Bank.
IDF anti-Houthi operations
Summing up attacks against the Houthis of Yemen, the IDF said it had undertaken 20 aerial operations in 2025, striking 230 targets, although many of these targets were repeat strikes on the same location after Houthi efforts to repair targets that had been previously struck.
Ninety-one IDF soldiers were killed in 2025, and 821 were seriously wounded – a high number in an average year, but a significant drop from 2023-2024.
Moderately wounded IDF soldiers evacuated by land vehicles numbered 3,050; another 300 wounded were evacuated by helicopter.
The IDF Home Front Command supplied 1,500 new mini-safe-houses and renovated or improved around 200 larger bomb shelters.
The navy undertook 50 attacks, over a total of 130,000 hours spent at sea.
In 2025, 306,830 reservists served in the IDF.
