Is the USA at war with Afghanistan, then? It can't be "at war" with a gang of criminals. So is it at war with Afghanistan, the casus belli being that Afghanistan harbours the criminals? If not: with what state is the USA "at war"?The problem is, Bin Laden had deep connections with the ISI and Afghan government, to the point that military occupation was necessary to dislodge him. And thank you for the hilarious image of PC plod being sent to Afghanistan to give Bin Laden a clip on the ear.
That said, Corbyn's foreign policy would be like that of another English leader: Ethelred the Unready. He preferred to have diplomacy with the men who travelled in funny boats and there was a mutual arrangement for peace, unliek the evil Militaristic Byzantine Empire, who sought to use force.
Your Ethelred stuff is simple rubbish. Corbyn has not suggested paying anyone to abstain from invading England.
The Militaristic Byzantine Empire, by the way, paid tribute to a very significant extent to secure peace with its enemies, even during its most flourishing periods.
Nevertheless, Justinian I had little money left towards the end of his reign partly because of the Justinian Plague, and the Roman–Persian Wars (Justinian spent large amounts of money in annual subsidies to the Sassanian Empire), which both harmed the economy. In addition to these expenses, the rebuilding of Hagia Sophia cost 20,000 pounds of gold. Subsidies to enemy states were also paid by Justinian's successors: Justin II was forced to pay 80,000 silver coins to the Avars for peace; his wife Sophia paid 45,000 solidi to Khosrau I in return for a year's truce, and then Tiberius II Constantine gave away 7,200 pounds of gold each year for four years.