Commission. A writing, generally in the form of a warrant or letters-patent, authorizing the performance of duties, or exercise of powers belonging to another. Instruments bearing this title are issued by the Executive to officers in the army or navy, who, on confirmation of their appointment, are known as [commissioned] officers. The practice of buying and selling all commissions under the rank of colonel, which formerly prevailed in the British army, was abolished in 1871.

Commissioned. One having a commission; furnished with a commission; empowered or authorized to act; as, a commissioned officer.

Common Time. In marching, the length of the direct step in common time is 28 inches, and the cadence is at the rate of 90 steps per minute.

Communication, Line of. A fantastical name applied by Belidor to mines with immense charges, which he proposed to use for the destruction of countermines, and which were used successfully in the attack of Schweidnitz, under Frederick II.

Commutation. Is the conversion of allowances, such as fuel, forage, and quarters, into their money value.

Comorn. A royal free town of Hungary, 48 miles from Buda. Its citadel is considered one of the strongest in Europe. Its works and intrenchments extend about 7 miles along the banks of the rivers (Waag and Danube), and it requires for its defense at least 15,000 men and 400 pieces of artillery. It has the reputation of being impregnable, and justified it in the Hungarian war, for the Austrians besieged it from October, 1848, to September, 1849, and only became masters of it at last in virtue of a capitulation.

Compagnies de Discipline (Fr.). “Companies of discipline.” These companies were created by Napoleon I. in 1802; the basis of their actual organization was laid by a royal order, dated April 1, 1818. This order fixes the number of companies at 10, 6 of fusileers and 4 of pioneers, the former to be composed of soldiers of the army who were guilty of indiscipline, and the latter to be formed of men of the former who were deemed incorrigible. The number of companies is now reduced to 7, who are stationed in Algeria. There are also 4 companies similarly organized which are stationed in the French colonies.

Compagnies d’Ordonnance (Fr.). The name of a corps of cavalry, which was organized in France by Charles VII. in 1439; it numbered 16 companies, and the entire strength was 9600 men. This was the first regular cavalry organized in France.

Company (Fr. compagnie). In military organization, is a body of men commanded by a captain, and forming an aliquot part of a regiment or battalion. In the British service a full company consists of about 100 men, and a regiment of infantry generally comprises 10 or 12 companies, or if there is more than 1 battalion, each has this number of companies. The captain of each company is assisted by 2 subalterns. In the U. S. army each regiment of infantry is divided into 10 companies, and each company has a captain and 2 lieutenants. The artillery and cavalry regiments are divided into 12 companies each, and the former has a captain and 4 lieutenants to each company. See [Organization].

Company Column. The successive improvements that have been made in fire-arms during the last hundred years have been followed by a gradual diminution of the depth of tactical formations, until to-day the “open order,” or the formation as skirmishers, is the only one adopted under the fire of the enemy. In the most recent development of the “open order” the company, composed of 250 men, is recognized as the “fighting unit,” while the battalion, composed of 4 companies, is regarded as the “tactical unit,”—that is, the smallest body of men that can be safely employed independently.