NATO Secretary General Jens Stoltenberg steps down on Tuesday after 10 testing years for the Western military alliance's unity and purpose. Stoltenberg will hand over to former Dutch prime minister Mark Rutte with a wreath-laying ceremony and an official handshake at NATO headquarters in Brussels.

Jens Stoltenberg is leaving NATO in early October. The Secretary General of the North Atlantic Treaty Organization can use his many years of experience in his new position, which is also related to international security.

President Volodymyr Zelenskyy has thanked Jens Stoltenberg for supporting Ukraine as NATO Secretary General and congratulated his successor, Mark Rutte, on taking up the post. Source: Volodymyr Zelenskyy on Twitter on Wednesday,