Answer :
Final answer:
The Battle of Flers-Courcellette was significant for being the first use of tanks by the British in World War I.
Explanation:
The Battle of Flers-Courcellette was significant for being the first use of tanks by the British in a military conflict. It took place during World War I on September 15, 1916, as part of the larger Battle of the Somme. The British deployed tanks called Mark I to support their infantry and break through the German lines.
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