Ferguson said Canada could buy Dassault Aviation's Rafale or the Eurofighter Typhoon — produced by a consortium including BAE Systems, Airbus Group and Leonardo — but they would cost as much as F-18s and would lack commonality with U.S. forces and with the current fleet. "Then I bet they are back for F-18s or F-35s if they're more concerned with future air-combat capabilities," he said.