The October 7, 2023, massacre triggered a profound reassessment within Israel’s defense establishment, leading to a sweeping overhaul of the IDF’s defense and operational doctrine from its long-standing doctrine of “conflict management,” which relied heavily on technology, deterrence, and passive defense.

Some of the key lessons and changes were detailed in a Kan News report on Monday morning.

Border Defense: From Technology to Troops

Before October 7, the IDF relied heavily on Gaza’s above- and below-ground barrier, including sensors, cameras, and automated “see-and-shoot” systems, as an almost impenetrable line of defense. The October 7 massacre demonstrated that technology without sufficient manpower can be neutralized quickly.

Under the new doctrine, the IDF has restored a reinforced version of traditional routine border security by significantly increasing the number of permanently deployed combat troops along Israel’s borders. Rather than relying primarily on technological warnings, armored, infantry, and combat engineering forces now maintain a constant physical presence on the front lines.

Security Buffers Inside Enemy Territory

Another major change involves the creation of broad security buffer zones inside the Gaza Strip and along the northern border. Before the massacre, Palestinian farmers were permitted to approach within just dozens of meters of the Gaza security fence, allowing Hamas to gather precise intelligence and plan its breach. In addition, Hamas carried out violent riots next to the border fence in the months and weeks leading to the October 7 massacre. Under the new policy, any movement within these buffer zones is considered an immediate threat and is met with live fire.

The goal is to create sufficient distance to provide Israeli forces with additional response time and prevent direct access to nearby Israeli communities.

Rebuilding Ground Forces

For decades, the IDF steadily reduced the size of its ground forces under the assumption that the era of large-scale ground maneuver warfare had passed and that Israel could rely primarily on its air force and relatively small special operations units.

The new doctrine reflects the conclusion that force size matters. The IDF is now significantly expanding its ground forces by establishing new divisions and brigades, including reserve brigades; extending mandatory military service and substantially increasing reserve duty; and replenishing its inventory of tanks, armored personnel carriers, and domestically produced ammunition in order to reduce dependence on foreign suppliers.

Immediate Authority for Field Commanders

The IDF has also formulated an entirely new General Staff alert protocol known as the “Ra’am” Order. The directive grants regional and divisional commanders independent authority to immediately mobilize both active-duty and reserve forces without waiting for approval from General Staff headquarters. The goal is to eliminate the approval bottlenecks that hampered the military’s response on October 7.

Flexible Response Options

The new doctrine also replaces the previous one-size-fits-all response model. Instead of each sector having a single standard response plan, every regional command now has a broad range of operational responses tailored to different scenarios, from localized incidents to multi-front attacks, allowing for greater flexibility and faster decision-making during emergencies.

Greater Force Presence and Rapid Mobilization

The IDF has significantly reinforced the standing combat units deployed along Israel’s various fronts. Alert times and mobilization procedures have been dramatically shortened, and the military no longer assumes it will receive days or even hours of advance intelligence warning before needing to deploy forces.

A New Security Brigade

Another structural reform is the establishment of a new Security Brigade within the Operations Directorate. The brigade is responsible for coordinating and overseeing all aspects of military security under one command, including information security, the protection of military bases and installations, personal security, and territorial defense. Its creation is intended to ensure uniform, stricter, and closely supervised security standards across all border sectors and military installations, regardless of whether a particular front appears quiet at any given time.

The Bottom Line

Overall, the IDF has shifted from a doctrine of “conflict management” based on technology and deterrence to one focused on permanent wartime readiness, reinforced physical defenses along the front lines, and a strategy focused on rapidly transferring the fighting into enemy territory.

(YWN Israel Desk—Jerusalem)