i'm joined by matthew sussex, an associate professor of strategic and defence studies at the australian national universitygramme. welcome. to begin with, i wonder what you can tell us about the so—called new missile that president putin has been discussing at the nation address.— has been discussing at the nation address. well, this is a missile that _ nation address. well, this is a missile that is _ nation address. well, this is a missile that is designed - nation address. well, this is a missile that is designed to - missile that is designed to carry nuclear warheads, about six of them in fact. it is called an rs 26 and previously, it was thought that russia would only use them if they had nuclear warheads on them. this time, as a kind of demonstration effect i think perhaps, the russians have put conventional explosives on this missile. it has been touted as a new missile, it doesn't seem to be all that new, actually. nonetheless, a missile that has been used in the dnipro, in ukraine to send a message both to, i suppose, ukraine to send a message both to, isuppose, the ukraine to send a message both