Rising Sun, surely you jest. You think helping the French from 1914-18 makes up for the Napoleonic Wars, French Revolutionary Wars, American Revolutionary Wars, Seven Years War and the War of the Austrian Succession? These are just Franco-British conflicts that I can think up offhand but doubtless there are more that have happened. Perhaps helping the French once would make up for one of these wars but surely not all of them.
Also, I thought the reason for Britain entering the war in 1914 was the violation of Belgian neutrality. I don’t think the British were committed to protecting France itself.