A wall is sometimes built to protect, sometimes to separate and occasionally to do both - but will Israel's latest project protect it or further seal the country's isolation in the region?

A new 'border wall' is going up in Israel, but this time it is in the north of the country, on the border with Lebanon. The six-metre high slabs of concrete and barbed wire are meant to avoid friction and protect from incoming fire.

Israel already has a security wall running along the border with Lebanon. But this one will only be one kilometre long, stretched between Metulla and the Lebanese village of Kfar Kila, and is actually very small in the context of the whole border. 

Metulla is Israel's northern-most outpost and it is surrounded by Lebanon on three sides, which explains why Israel feels it needs extra protection there.

The country's newest frontier wall follows the construction or planned-construction of four others. These could eventually see Israel completely enclosed by steel, concrete and barbed wire.