name some recipients of the award ?
Noel Chavasse and Arthur Martin-Leake, to name a few.
Victoria Cross
Three people have been awarded the VC and Bar, the bar representing a second award of the VC. They are Noel Chavasse and Arthur Martin-Leake, both doctors in the Royal Army Medical Corps, for rescuing wounded under fire; and New Zealander Charles Upham, an infantryman, for combat actions. 
who fought in the battle of vimy ridge The main combatants were the four divisions of the Canadian Corps in the First Army, against three divisions of the German 6th Army. when did this battle take place ? It took place from 9 to 12 April 1917. who won the battle ? Canadian Corps. where there any underground operations ? Underground warfare had been conducted on the Vimy sector. what was the aftermath effects of the war ? The corps suffered 10,602 casualties: 3,598 killed and 7,004 wounded. The German 6th Army suffered an unknown number of casualties with approximately 4,000 men becoming prisoners of war. is there any memorial conducted in its honour ? Yes, "The Canadian National Vimy Memorial". anything specific reference to the german defenses during this war ? Their defensive scheme was to maintain a front line defence of sufficient strength to defend against an initial assault and move operational reserves forward, before the enemy could consolidate their gains or overrun remaining positions. As a result, their defence at Vimy Ridge relied largely on machine guns, which acted as force multipliers for the defending infantry. what was the victoria cross ? It is the highest and most prestigious award of the British honours system. It is awarded for valour "in the presence of the enemy" to members of the British Armed Forces.
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Victoria Cross [SEP] Recipients
The greatest number won in a single conflict is 628, being for the First World War. Ishar Singh became the first Indian Sikh to receive the award. Eight of the then-twelve surviving holders of the Victoria Cross attended the 150th Anniversary service of remembrance at Westminster Abbey on 26 June 2006. Three people have been awarded the VC and Bar, the bar representing a second award of the VC. They are Noel Chavasse and Arthur Martin-Leake, both doctors in the Royal Army Medical Corps, for rescuing wounded under fire; and New Zealander Charles Upham, an infantryman, for combat actions. Upham remains the only combatant soldier to have received a VC and Bar.