I am interested in the way our East Anglian coast has been defended against its two enemies, war and the weather.
At one point near where I live it is possible to stand on the sea wall and see a second war gun emplacement, a first war look out or 'pill box' and three Napoleonic Martello towers. The old wooden coastal defences have been covered by new rocks from Norway. In some places this has had the reverse effect causing the sea currents to change direction, resulting in scouring and loss of foreshore further down the coast.
'Friendly fire' refers to the euphemisms used by journalists to describe happenings in war that are too awful to contemplate.