Bleus, Les (i.e. “The Blues”). A name given to the soldiers of the Republic, by the Royalists, during the wars of La Vendée, on account of their uniform.
Blidah. A considerable town of Algeria, on the border of the Metidjah Plain; taken by the French in 1830, and permanently occupied by them since 1838.
Blieskastel. A small town of Rhenish Bavaria; near here, on November 19, 1793, 7000 Prussians and Saxons under Gen. Kalkreuth fought the French, about 20,000 strong, under Gen. Hoche, neither side gaining the victory. The Prussians held their ground without any great loss until dark, when, deeming their position untenable, they evacuated it during the night.
Blindage. A temporary bomb-proof or splinter-proof roofing, constructed of timber and the like, to give cover to magazines, batteries, hospitals, etc. See [Blinds].
Blinds. In military affairs, are wooden frames, composed of four pieces, either flat or round, two of which are 6 feet long, and the others 3 or 4 feet, which serve as spars to fasten the two first together: the longest are pointed at both ends, and the two others are fastened towards the extremities of the former, at about 10 or 12 inches. Their use is to fix them either upright, or in a vertical position against the sides of the trenches or sap, to sustain the earth. Their points at the bottom serve to fix them in the earth, and those at the top to hold the fascines that are placed upon them; so that the sap or trench is formed into a kind of covered gallery, to secure the troops from stones and grenades.
Blind-shell. A shell, the bursting charge of which is exploded by the heat of impact. Used in modern ordnance against armor.
Blistered Steel. See [Ordnance, Metals for].
Block. See [Implements].
Blockade. In military art, is an operation for capturing an enemy’s town or fortress without a bombardment or regular siege. The attacking party throws up works on the neighboring heights and roads, and part of the besieging force remains under cover in villages, or in a temporary camp, ready to repel any sortie attempted by the besieged. The whole purpose in view is to prevent the besieged from receiving supplies of any kind, in order that, when food or ammunition is exhausted, they may be compelled to surrender. Fortresses situated on steep and rocky eminences, difficult to conquer by bombardment or assault, may often be reduced by blockade, because the roads or paths for the reception of supplies are few, and can be guarded by a small number of troops.
Blockade. In international law, is the means in time of war of rendering intercourse with an enemy’s port unlawful on the part of neutrals; and it is carried into effect by an armed force (ships of war), which blocks up and bars export or import to or from the place blockaded. To be valid, a blockade must be accompanied by actual investment of the place, and it may be more or less rigorous, either for the purpose of watching the operations of the enemy, or to cut off all excess of neutral vessels to that interdicted place. To be binding on neutrals, it ought to be shown that they have knowledge, or may be presumed to know of the blockade, for which reason a formal notification of the fact is usually made by the blockading power. The breach of blockade, which may be effected by coming out of a blockaded port, or going in, subjects the property so employed to confiscation. On the proclamation of peace, or from any political or belligerent cause, the continuance of the investment may cease to be necessary, and the blockade is then said to be [raised]. The blockading force then retires, and the port is open as before to all other nations. In the present century recourse has been had to this means of cutting off supplies from the enemy on several occasions. The Elbe was blockaded by Great Britain, 1803; the Baltic, by Denmark, 1848-49 and 1864; the Gulf of Finland by the allies, 1854; and the ports of the Southern States by President Lincoln, April 19, 1861.