100 Years Ago Today on 11 August 1917

​One hundred years ago on 11 August 1917
31st Battery, Canadian Field Artillery, Canadian Expeditionary Force was a sub-unit of the 9th Canadian Field Artillery Brigade in the 3rd Canadian Division. The 9th Brigade war diary records:
Visibility good.  No aeroplanes up.  One enemy balloon up.  Considerable movement was again observed in the rear areas.  Between MUERCHIN and CARVIN many trains were seen and also considerable movement of motor trucks and horse drawn vehicles.  The movement of men was smaller today than usual and mostly in the rear of the BOIS QUATORES.  Enemy artillery below normal today. 
 
3rd Canadian Divisional Artillery war diary records:
BRAQUEMONT - Visibility good.  Enemy artillery was active during the day; our heavy artillery in MAROC being shelled with 5.9's during the early morning, and later heavily with gas shells.  Apparently some of these contained the new German gas which caused great irritation to eyes, nostrils and throat.  Considerable movement was observed and fired on by our artillery.  The usual programs were carried out by our field artillery and heavy artillery.  Our planes were very active on the evening of the 11th.  Ammunition expended.  A.134., AS.109., HX.259., N.29., NX.1.  Guns in action 32 18-pdrs., 4 13-pdrs., 12 4.5" hows.
 
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force was a sub-unit of 1st Canadian Heavy Artillery Group for administration and under command 2nd Canadian Heavy Artillery Group for Counter-Battery. Their war diary records:
ANGRES - During the month of August the Battery took part in the capture of Hill 70, also the taking of the Green Crasier and all the fighting on the Lens front. During this time the Battery was twice heavily shelled by 8” and on several occasions we were bombarded with Gas Shells.
 
1st Canadian Heavy Artillery Group war diary records:
Cabaret Rouge – Major A.G. Mullins, DSO, 72nd SAHA, took over Group Commander's work today vice Lieut. Colonel F. Minden Cole, granted leave to the United Kingdom. 
 
2nd Canadian Heavy Artillery Group was placed in tactical control of 5th Canadian Siege Battery for counter battery work. The 2nd CHAG war diary records:
X.23.b.1.5 -  Fair but cloudy. Poor visibility. A number of aeroplane shoots carried out successfully. A great deal of harassing and neutralization fire throughout day. Enemy Artillery active against our batteries but without damage. A small amount of ammunition blown up in 152 HB. Position. Heavy rain continuing through afternoon making aeroplane shooting impossible clearing at night.
 Ammunition expended:-    60-pr.    8”How     6”How     9.2”How     4.5”How
                                                  581          101          936             608               708
 
General Officer Commanding, Royal Artillery, Canadian Corps war diary records:
In the Field -      WEATHER:  fair, overcast & rain later in day - cool. 
 
The 15th Field Artillery Regiment RCA perpetuates the following sub units:
31st Battery, Canadian Field Artillery, Canadian Expeditionary Force,
5th Canadian Siege Battery, Canadian Artillery, Canadian Expeditionary Force,
68th Battery, Canadian Field Artillery, North Russia Expeditionary Force, was not authorized to be formed until 3 August 1918, and
85th Battery, Canadian Siberian Expeditionary Force was not authorized to be formed until 12 July 1918.