The M/16 was employed in the static defence of the various military installations in Norway. The weapons were moved around as priorities shifted, but at the time the Germans invaded Norway on 9 April 1940, six guns were mounted near Bergen, four were mounted at the Naval base in Horten; the remaining two were near Oslo along with more modern weapons, such as the &lt;a href="7.5%20cm%20L/45%20M/32%20anti%20aircraft%20gun"&gt;7.5 cm L/45 M/32&lt;/a&gt;, to defend the capital.