President Uhuru Kenyatta has numerously appeared in public putting on his uniform since he took office in 2013.

A President may decide to wear military uniform for the following reasons

First of all, he is the Commander-in-Chief of the armed forces in Kenya. He is legally allowed to put on the uniform in such a capacity 

Secondly, Military has values that the president might want to be identified with, such as discipline, endurance and integrity

The third reason why Uhuru or any other President puts on the military fatigue is to show unity and support for KDF soldiers 

By wearing his Commander -in-Chief uniform, he is honouring the soldiers, ready to stand by them and inspire them to victory.
 
President Uhuru Kenyatta is not the first sitting Kenyan president to wear a military gear.

Mzee Jomo Kenyatta and Daniel Moi both appeared in public in military attire during their time in office. 

Only Uhuru’s predecessor, the third president, Mwai Kibaki, left office without putting on the military fatigue.