Dec 22nd 2011, 15:43 by M.J.S.
WHEN the news came through on November 26th that up to 24 Pakistani soldiers had been killed in a cross-border incident involving American and Afghan forces, your correspondent was at ISAF HQ in Kabul preparing to interview General John Allen, the commander of coalition forces in Afghanistan. The mood at ISAF was one of deep shock combined with a sense of foreboding. The timing was awful. General Allen had only just returned from a visit to General Ashfaq Parvez Kayani, chief of Pakistan’s army general staff, in a bid to improve relations that were already under the severest strain. As well as closing the land corridor that provides ISAF with up to half of its supplies, Pakistan announced that it would boycott the following week’s international conference in Bonn on the future of Afghanistan. The only (grim) smiles were caused by a reporter from a German news magazine who took a German general at ISAF to task for what he seemed to think was a deliberate attempt by America to sabotage his country’s hosting of a successful conference.