The French and English may strike a serious blow at the power and prestige of Russia, and we in this country are accordingly looking with renewed interest to the movement against Sebastopol, the latest intelligence from which is detailed in another column. As a matter of course, the British and French journals make a great parade about this undertaking, and if we can believe them, nothing grander was ever heard of in military history. An expenditure of caution, such a profusion of science, against an enemy who succumbs to an undertaking which has for its end, not his destruction, but the preservation of their own army; this would be the greatest condemnation the Allies could pass upon themselves. The force of the Russians is not exactly known, but there is no doubt it is large enough to allow them to be stronger than the Allies on most points in the immediate vicinity of Sebastopol.