NATO Applications NATO Secretary General Jens Stoltenberg receives official letters of application to join NATO from Klaus Korhonen, ambassador of Finland accredited to NATO, and Axel Wernhoff, ambassador of Sweden accredited to NATO, in Brussels, May 18, 2022. SHARE IMAGE: Download Image: Full Size (1.37 MB) Tags: sweden, finland, partnerships, nato Photo By: NATO VIRIN: 220518-O-D0439-102R.JPG Photo Gallery