US President Donald Trump said Sunday he envisages a four-week military operation against Iran, where American and Israeli strikes have killed the country’s supreme leader and crippled its defense capabilities.“It’s always been a four-week process. We figured it will be four weeks or so,” he told British newspaper the Daily Mail, the latest of several interviews with media outlets Sunday.“As strong as it is, it’s a big country, it’ll take four weeks – or less,” Trump said.For all the latest headlines follow our Google News channel online or via the app.The US president said earlier on Sunday that 48 Iranian leaders had been killed in the US-Israeli bombardments of the country and that the offensive was “very positive.”“Nobody can believe the success we’re having, 48 leaders are gone in one shot. And it’s moving along rapidly,” Trump was quoted as saying in an interview by Fox News.Trump claimed overall success in the war, which was launched Saturday with the goal of removing Iran’s