Many in Israel see Hezbollah as a greater threat than Hamas and consider a new war in Lebanon to be inevitable

• Israel-Gaza war – live updates

When the news first broke of the Hamas attack early on 7 October, Itai Reuveni and the other reservists in his paratrooper battalion packed their bags and arrived at their muster point well before their call-up came from the army.

The paratroopers did not head south to Gaza but to the northern border, where they believed a far greater threat than Hamas was poised to join the fight: Hezbollah, the Lebanese Shia movement backed by Tehran.

Lebanese militant group appears to be trying new tactics to test Israel’s resolve

Tensions between Israel and the Lebanese militant group Hezbollah are at their highest level in years after a series of inflammatory incidents on the UN-controlled boundary between the two countries.

Seventeen years after the Iran-backed movement’s last devastating war with Israel, Hezbollah appears to be trying new tactics in the volatile border region to test Israel’s resolve. Such brinkmanship is not unknown, but the increasing frequency of the border skirmishes is raising the likelihood of miscalculation – and escalation.