Romanian President Klaus Iohannis indicated on Tuesday that he is interested in becoming the civilian head of NATO when Jens Stoltenberg steps down in October. “I have decided to enter the competition for the role of secretary general of NATO,” Iohannis said in a televised address, confirming longstanding speculation on his intentions for when his mandate as Romanian head of state runs out in the autumn after two terms. Dutch Prime Minister Mark Rutte, who is also stepping back from national politics, is seen as the frontrunner. He has the backing of the United States. Romania had shown itself…