"As part of the exercise, complex scenarios were practiced in order to examine the IDF's competence, processes for transitioning from routine to emergency, and the functioning of the General Staff and regional commands," the Israeli military said in a statement.
Taking place just ahead of the two-year anniversary of the surprise Hamas attacks in which thousands of members of the militant group attacked Israel from air, land and sea, the drill aimed to "implement the lessons of October 7," the military added.
In one day, Hamas killed around 1,200 people mostly civilians, and took another 251 hostages to Gaza, sparking the worst round of Gaza war since Hamas took over the strip in 2007.
Israel's incursion into the enclave has killed 61,000 Palestinians according to Gaza health officials. Humanitarian organizations have warned famine looms for the population there, most of which has been displaced by Israeli military action.
"The Chief of Staff also conducted situation assessments in the Air Force and Navy together with the commanders," the statement added.
The exercises came two months after Israel launched a surprise military campaign against Iran on June 13, targeting military and nuclear sites and killing hundreds of military personnel, nuclear scientists and civilians.