World leaders talk big at COP26 on trying to avert a spiralling environmental catastrophe – but some key players are missing.

The Defence Secretary says militaries would have to deal with the consequences of a failed climate change policy.

In this week’s Sitrep – we examine the hopes of success or failure, and ask a former UK ambassador to the UN whether a ‘wartime mentality’ could help.

We’ll also dig into the murky data on just how much carbon emissions come from militaries... and how that might change.

Also this week we’ll examine the significance of RAF jets flying from Israeli soil for the first time since the country’s independence.

And we ask – is it time for an Afghanistan inquiry, or did the experience of Iraq teach us that there are better ways to learn lessons?