On the one hand, serving in the military is a key cultural value for most Israeli Jews.
On the other, the military's strategy involves massive use of retaliatory force. A decade or two ago a general explained that for every rocket Hamas shot at Israel (not very effective rockets, killing a civilian or wounding a couple), Israel would level a whole building. So a military doctrine that results in massive civilian casualties. War crimes, but also bad strategy (https://www.foreignaffairs.com/israel/middle-east-robert-pape).
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