The west defends Israel’s skies. Not doing the same for Ukraine is a deadly mistake | Nathalie Tocci

In Kyiv, I saw life under Russian aerial attack. If Europe doesn't share its air defence systems now, Putin's threat will only spread

The value of an effective air defence system and of unwavering international support was crystal clear the night of Iran's massive attack on Israel: most Iranian missiles and drones were destroyed before they reached Israeli soil. The US, the UK and France, as well as Jordan, participated in Israel's defence.

I arrived in Kyiv the following day. The contrast between the two emergencies could not be starker. Unlike Israel, Ukraine lacks sufficient air defences, and the west provides far less than it could or should to defend Ukraine against Russia. Ukraine is not dealing with one-off retaliation for striking a Russian consulate - as Israel is with Iran. Russia has been waging a war of aggression against Ukraine since 2014, aimed at eradicating its nationhood.

Nathalie Tocci is a Guardian Europe columnist

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