Chancellor Angela Merkel won a new two-year term Tuesday as the leader of Germany’s main conservative party, gaining solid backing after stressing her determination to prevent a repeat of last year’s huge migrant influx. Merkel, who ran unopposed, won 89.5 percent of delegates’ votes at a congress of her Christian Democratic Union in the western city of Essen. That was short of the 96.7 per cent she won two years ago, but still a strong mandate as she prepares to seek a fourth term as chancellor in next year’s German election.