Turkey is pulling 40 soldiers out of a NATO exercise in Norway, President Tayyip Erdogan said on Friday, after his name appeared in a list of enemies on a poster at the drill, an incident that drew an apology from both the military alliance and Oslo. Turkey has the second largest army in the alliance after the United States, and it borders Syria, Iraq and Iran, lending it great strategic importance for NATO. But the relationship has become increasingly fractious as Ankara drifts away from the alliance and the European Union, alarming the West.