Why the Houthis entered now

The conflict in the Middle East has deepened, with Yemen's Iran-backed militia group - the Houthis - launching attacks on Israel over the weekend.

The entry of this powerful Iranian proxy has raised fears of further disruption to the global economy.

The armed group has the capacity to attack the Bab el-Mandeb Strait off the coast of Yemen, one of the busiest shipping routes in the world.

• GUEST: Hisham Al-Omeisy is a Senior Yemen Advisor at the European Institute of Peace
• PRODUCER: Brooke Young