Again I'm going to make just a few comments and then hand it over to General Hillier, who has more details about the Nyala than I have.
The Nyala is a superb vehicle for the roles we have it in now in Afghanistan. The Nyala was built to, where possible, defeat mines. It certainly can defeat a single mine. Sometimes the Taliban pack three or four mines in a row, and so you could have a four-mine explosion. But we've only had one incident so far with the Nyalas where we had a soldier killed, and in fact we're investigating that now, because it was a very odd circumstance.
They have been very good vehicles. As you know, there was a second buy of Nyalas, and most of them will be streaming into Afghanistan as soon as possible for the troops.
I'll hand it over to the CDS.