Israel’s war in Gaza isn’t genocide, but is it proportionate?

It is now almost three months since Benjamin Netanyahu’s government launched its ground invasion of Gaza, and it is time to ask some hard questions: Has it been proportional to the damage that Hamas inflicted on Israel? Has the Israeli military been careful to avoid civilian casualties? Was there another path?

I write this as a supporter of Israel, a country that I believe has been a remarkable success in an environment that was for decades deeply hostile toward it — and where some countries, such as Iran, remain opposed to...