FILE PHOTO: Banners displaying the NATO logo are placed at the entrance of new NATO headquarters during the move to the new building, in Brussels, Belgium April 19, 2018. REUTERS/Yves Herman
BRUSSELS (Reuters) - The race to be the next NATO boss is heating up. But it is a race run largely in the dark, with no sign of a winner yet.
Jens Stoltenberg, the transatlantic military alliance's Norwegian secretary-general, is due to step down at the end of September after nine years in post.
