Passage: When Grabar-Kitarović saw an ad for a job at NATO in The Economist magazine, she thought that the job was well-suited for her, but in the end decided not to apply for it. It was only when NATO failed to choose a candidate for the job in two rounds that she finally applied, and in the third round she received the position. During her term at  NATO she often visited Afghanistan and the Croatian soldiers that are deployed there as part of a peacekeeping mission. Her task was to take care of the "communication strategy" and to "bring NATO closer to the common people". Her colleagues at NATO often referred to her as SWAMBO (She Who Must Be Obeyed). Grabar-Kitarović was the first woman ever to be appointed to the position. She served as Assistant Secretary General in NATO until 2 October 2014.

Question: The first women to be appointed to a certain position in NATO served in what position?
Assistant Secretary General