According to former ministers like Al Carns, the UK is facing the imminent threat of war. In a sense, this is always true, because the UK and the US regularly initiate conflict. And while we could simply stop committing ourselves to these illegal wars of aggression, Labour MPs like Carns and Lisa Nandy are instead proposing a fresh round of austerity: Nandy: "We've got to significantly increase the amount we're spending on defence" Over the last several days I haven't seen a single interviewer question this claim. Instead the challenge to politicians making it is, are you increasing it fast enough/by…