The first school I ever attended had heavy steel doors behind which lay a narrow corridor and a window of bulletproof glass. The next set of steel doors could only be opened by the former Israeli commando behind the glass. And no one was allowed to enter or leave except on a staggered schedule so that in the event of a terrorist attack not more than a handful of children and parents would be killed.
This school wasn't in Israel. Israeli schools don't look like this. Jewish schools in Europe do.
European Jewish institutions tend to have more of the ubiquitous Israeli security guards keeping watch (some, like Dan Uzan during the Copenhagen attacks, have paid the ultimate price) than their Israeli counterparts. More than Israel, a single non-Muslim state encircled by the shattered remnants of a Muslim empire, they feel as if they are cut off and under siege.