TEXT: Polish Motorized Brigade
  September 1, 1939
  x 1
  x 1
  x 12
  x 1
  Consists of 1 light tank company, 1 recon tank company, 2 motorized rifle regiments, 1 artillery
  battalion, 1 anti-tank battalion, 1 engineer battalion, and 1 anti-aircraft battery.
  x 1
  x 1
  Anti-
  Aircraft
  Battery
  Motorized
  Rifle
  Regiment
  x 2
  x 17
  Artillery
  Battalion
  x 2
  x 3
  x 1
  Engineer
  Battalion
  x 1
  x 1
  x 1
  x 2
  x 1
  x 3
  x 1
  x 4
  x 4
  x 4
  Anti-Tank
  Battalion
  Light
  Tank
  Company
  Recon
  Tank
  Company
      
   These brigades, sometimes called motorized cavalry brigades, were formed from converted
  Polish cavalry units and were meant to screen the infantry, to plug gaps as needed, and to fight enemy
  mechanized units.
       
  The 10th Motorized Brigade was in action from the first day of the war and faced the entire
  German XVIII Corps.  Supported by several National Defense battalions, the brigade successfully
  slowed the progress of the 4th Light, 2nd Panzer, and 3rd Mountain Divisions for 5 days, holding them
  to an advance of no more than 10 km a day.  The Brigade was then withdrawn to help defend Lwow.
  When the Russians invaded eastern Poland, the brigade escaped to Hungary, having lost half of it’s
  soldiers.  From there most of the soldiers escaped to France and fought there as the 10th Armored
  Cavalry Brigade.  After the fall of France, they escaped once more to England and became the cadre of
  the 1st Polish Armored Division.
  There were only two of these brigades.  The second one was the Warsaw Motorized Armored
  Cavalry Brigade.
  
SOURCE: textdata/thevault/Panzer Leader & Panzer Blitz/Fall Weiss - The Polish Campaign/PolishMotorizedBrigade.pdf