and
valuable service. During the Second _Battle of Le Cateau_ (October
6-12, 1918) cavalry were instrumental in harassing the enemy in his
retreat and preventing him from completing the destruction of the
railway, and when the infantry were held up by heavy machine-gun fire
from Cattigny Wood and Clary "a dashing charge by the Fort Garry Horse
gained a footing in Cattigny Wood and assisted our infantry to press
forward. Further east, Dragoon Guards and Canadian Cavalry were
instrumental in the capture of Hennechy, Reumont, and Troisvilles" (Sir
D. Haig's Dispatches). In the early stages of the campaign in _North
Russia_ (August-September, 1918) a handful of cavalry on either bank of
the North Dwina River could have kept the Bolshevik forces constantly
on the run, and could have prevented the successive reorganisation of
their demoralised forces, which the slower progress of the pursuing
infantry was unable to accomplish. A few squadrons of cavalry could
have dispersed the whole {67} Bolshevik force in the Archangel
Province. Tanks are usefully employed in the pursuit, as artillery,
the only effective enemy of the tank, is unlikely to remain in action
with the rearward troops of a disorganised enemy; and a new terror has
been added to the pursuit by the advent of self-propelled, man-carrying
Aircraft, armed with machine guns and bombs, and possibly even with
light quick-firing artillery. During the final stages of the
victorious _Allied Advance_ in November, 1918, the retreating German
Armies were continuously harassed from the air. "Throughout the day
(November 5, 1918) the roads, packed with the enemy's troops and
transport, afforded excellent targets to our airmen, who took full
advantage of their opportunities, despite the unfavourable weather.
Over 30 guns, which bombs and machine-gun fire from the air had forced
the enemy to abandon, were captured by a battalion of the 25th Division
in the field near Le Presau" (Sir D. Haig's Dispatches).

THE ROYAL ENGINEERS.--The position and employment of the Royal
Engineers will be determined by the commander who issues orders for the
Attack, and as the main function of this corps in the Attack is the
removal or bridging of obstacles to the advance, and the strengthening
of the position when captured, the Royal Engineers will probably remain
with the troops to which the decisive attack is entrusted.

MEDICAL ARRANGEMENTS.--The position of hospitals and clearing station