The ceremony took place at Urugwiro Village on Wednesday 7th June 2023.
Speaking at the ceremony, Kagame reminded them to serve the nation and Rwandans with dedication in their respective responsibilities.
"Wherever one works, they must focus on their duties, perform them well, with the understanding of the importance of those responsibilities and how they will contribute to the livelihoods of Rwandans," he stated.
The Head of State also underscored that collaboration among leaders is paramount to deliver on expectations.
Marizamunda replaced Maj Gen Albert Murasira who had held the position since October 2018.
Prior to this new appointment, Marizamunda served as the Commissioner General of the Rwanda Correctional Services (RCS) from 2021, following his transfer from the Rwanda National Police (RNP) where he worked as the Deputy Inspector General in Charge of Operations.
Marizamunda had previously served as a soldier in RDF before being transferred to RNP in 2014.
He held the rank of Lieutenant Colonel at the time.
Meanwhile, Lt Gen Muganga, the new CDS, previously served as the Army Chief of Staff (ACOS).
He replaced Gen Jean Bosco Kazura, who held the position since 2019.
Among others, Maj Gen Vincent Nyakarundi, former Head of Military Intelligence, has been appointed Army Chief of Staff while Colonel Francis Regis Gatarayiha, who previously served as his deputy, has been named Acting Head of Military Intelligence in the RDF.