Lervik was promoted to major-general and made Chief of the Army on 25 June 2020, succeeding Major-General Eirik Kristoffersen.[1][3]
In January 2021, Lervik expressed his support for winter NATO exercises in Norway during the COVID-19 pandemic, arguing that it is an important part of Norwegian security that the alliance is able to operate under the conditions in Norway.[4]
On 27 April 2023, Maj. Gen. Lervik was inducted as the 78th member of the U.S. Army War College, International Fellows Hall of Fame.[5]