Donald Trump's betrayal of Ukraine has emboldened Vladimir Putin and pulled the rug from under Nato allies

In Graham Greene's 1955 novel, The Quiet American, Alden Pyle, a CIA agent, reckons he has all the answers to conflict in colonial era Vietnam. Pyle's ignorance, arrogance and dangerous scheming, intended to bring peace, result instead in the deaths of many innocents and ultimately his own. In today's too-real, nonfiction world, Donald Trump is Pyle. Except he's The Noisy American. He thinks he's a great deal-maker. He never stops trumpeting his brilliance. Yet his North Korea "deal of the century" was a fiasco. He handed Afghanistan to the Taliban on a plate. Israel's Benjamin Netanyahu runs rings around him….