66th Mechanized Brigade (Ukraine)
The 66th Mechanized Brigade () is a brigade of the Ukrainian Ground Forces formed in 2022. History 
After  the Russian invasion in February 2022, the brigade was demobilized and transferred to the Ground Forces combat composition. The brigade units were in the battles for Bakhmut from October 2022 til May 2023. Structure 
As of 2023 the brigade's structure is as follows:

 66th Separate Mechanized Brigade,
 Brigade’s Headquarters
 1st Mechanized Battalion
 2nd Mechanized Battalion
 3rd Mechanized Battalion
 69th Separate Rifle Battalion (69 OSB A4612)
 Tank Battalion
 Artillery Group
Command and Reconnaissance Battery
Self-propelled Artillery Division
Anti-tank Artillery Division
Reactive Artillery Division
 Anti-Aircraft Defense Division
 Sniper Platoon
 Reconnaissance Company
 Engineer Battalion
 Logistic Battalion
 Signal Company
 Maintenance Battalion
 Radar Company
 Medical Company
 Chemical, Biological, Radiological and Nuclear Proteccion Company (CBRN-defense)

References 

Military units and formations of Ukraine in the Russian invasion of Ukraine
Mechanized brigades of Ukraine
Military units and formations established in 2022