The occupation of Denmark was initially not an important objective for the German government. The decision to occupy its small northern neighbour was taken to facilitate a planned invasion of the strategically more important Norway, and as a precaution against the expected British response. German military planners believed that a base in the northern part of Jutland, specifically the airfield of Aalborg, would be essential to operations in Norway, and they began planning the occupation of parts of Denmark. However, as late as February 1940 no firm decision to occupy Denmark had been made. The issue was finally settled when Adolf Hitler personally crossed out the words ' ("the Northern tip of Jutland") and replaced them with ', a German abbreviation for Denmark.