Well said!
Indeed one of the proudest actions undertaken by our military.
Why was the attack successful after many failures?
Innovative tactics executed by small groups of soldiers with predetermined objectives.
'Creeping barrage' artillery support
Both of which practiced and developed in Canada for the specific attack.
Every soldier memorized their objective on a scale model and practiced the action on a full size campaign replica. The 'Small unit' tactics and training have been adopted and practiced in all significant armies sense the battle of Vimy Ridge.