The Boer War and World War Two submarine warfare tactics rarely crop up in the cut and thrust of commercial litigation. Military expertise is not typically required.  But in July 2024, General Sir Richard Barrons, a retired British army officer, spent days giving expert testimony in a courtroom in Phoenix House on the impossibility of the war in Ukraine ending any time soon or of economic sanctions being relaxed against Russia. To bring down the civil aviation capacity of Russia, a country spanning 11 time zones, would be a major triumph for the West, he argued, and it would convey…