At the end of World War 1, The League of Nations was formed to prevent the recurrence of war between the European powers. One of the suppose causes of World War 1 was the armament race between the various European nations during the years leading up to WW 1.. The League in order to prevent future arms races established an armament reporting system. The purpose of this system was to make available to the average citizen information on his country's armament in comparison to his countries neighbours. The theory being that citizens of democratic nations would use this knowledge to insure no new armament race started. The first "Armaments Year-Book" was published in 1924. The last was published in 1940. Information for the book was obtained from intelligence provided by each member country and from open sources documentation. The following is a summary of the information contained in the 1937 issue of the book on Argentina.

The 1937 Argentina's military force consisted of the Army, the Air Service, and the Navy. The Army and Air Service were under the Minister of War and the Navy was under the Ministry of Marine. The Air Service supported both the Army and Navy and was funded under both of these services budgets. Both the Army and Navy having aircraft assigned to their branch of service.

The Army main strength was centred in five infantry divisions. Each infantry division being based in one of the country's five military districts, numbered one to five. The army also contained three mountain detachments, one special detachments, and three cavalry brigades. The mountain and special detachments "comprised in all two light infantry regiments, two fusilier companies, one machine gun company, two mountain artillery groups, and one mountain gun battery"

Each infantry division consisted of three infantry regiments, one cavalry regiment, one regiment of light artillery, one engineering bridging battalion, and one divisional train. Each infantry regiment contained two battalions of two rifle companies, one machine gun company, and one signal section.

The army contained a total of nineteen infantry regimens. Fifteen were assigned to the infantry divisions and four were reserved for special service. Two of the special service regiments were equipped as light infantry.

The cavalry consisted of eleven regiments. Each of the three cavalry brigades contained three cavalry regiments. The remaining two cavalry regiments were each assigned to an infantry division. This left three infantry divisions with out their assigned cavalry regiment. Two of the infantry divisions, to cover this shortage, were instead provided with a cavalry squadron. These cavalry squadrons would be expanded to regimental strength in war time. One division had no peace time cavalry unit assigned. This infantry division would draw upon the Cavalry School training squadron to build its wartime cavalry regiment. Each cavalry regiment consisted of three saber squadrons and one machine gun squadron.

The artillery was divided into field, mounted, and mountain units. The field artillery had five regiments, each of two groups, of two 75mm gun batteries, and one battery of 105mm howitzers. The mounted artillery consisted of three groups of two 75mm gun batteries. The mountain artillery had two groups each with two 75mm gun batteries. The artillery school in addition had attached to it two batteries of 75mm guns, one battery of 105mm howitzers, one battery of 130mm guns, and two anti aircraft batteries.

Army support units consisted of the air service, the engineers and the signal troops. The engineer component consisted of five battalions containing two engineer companies and one bridge train section. The signal troops were composed of one signal squadron, one divisional battalion, three divisional companies, and one railroad battalion. The army aviation service consisted of four groups; three observation and one fighter, with a total of 106 planes.

The army's personnel strength, in the main, consisted of conscripts. All males on reaching 20 years of age were subject to conscription. In general 25 percent of all the 20 year old's were called to the colors with 96 percent of the conscripts being assigned to the army and 4 percent to the navy. Service was 1 year in the army, actual time of service being 10 months, followed by 24 years in the reserves. The year 1937 saw 34,577 men being called to the colors. At the end of their 1 year of service those discharged were subject to two weeks of training each year until the age of 30. Volunteers could sign for an initial period of 1 to 5 years of service. The volunteers could renew their contracts for a total of 25 years of service. Total strength of the army in 1937 was 42,884 officers and men.

The Navy in 1937 consisted of 13,700 officers and men. Conscripts served for 2 years in the navy. Volunteers serve for an initial period of 2 to 3 years. Volunteers could renew their contract for additional periods of 3 years for a total of 25 years. Material strength of the navy consisted of two battleships, four coast defense ships, two cruisers, nine destroyers, three submarines, and thirty-four auxiliary ships. The battleships and coast defense ships being of pre WWI construction. The Cruisers and submarines were of post war construction. The destroyers and auxiliary ships were of both pre war and post war construction. Seven new destroyers were on order in 1937. The navy's air service consisted of 46 aircraft of which 15 were trainers.

During the period 1932 to 1937 Argentina increased its national defense budget from 137.2 million pesos to 162.3 million pesos. The Army budget increasing from 80.8 million pesos to 97.9 million pesos and the Navy budget going from 56.4 million pesos to 64.4 pesos during this period. Army personnel strength increasing from 33,427 to 42,884 at the same time.

The League of Nations "Armaments Year-Book" provides an interesting look at the armies of Latin America during the 1920s and 1930s. Information on individual countries is uneven. Some members providing excellent information on their military while others provided only cursory information. The narration’s of each country's armament from 1924 to 1936 also contains a synopsis of the countries military industrial strength. Copies of the League's "Armament Year-Book" are hard to find. Here in the United States they seem to repose in libraries of Universities having strong international programs.