The American Military 1936-39
The American military underwent few changes from 1936 to early 1938. Long was mostly concerned with expanding America's industrial power, and paid the military little heed. However, at the urging of the Kingfish General MacArthur and his vice-president Charles Lindbergh, he issued the National Service Act in November 1938. The Act was the first peacetime conscription in American history, and all major branches of the military would undergo expansions.
The American Army
The main part of the National Service Act required that all males fit for military duty serve for two years in the National Guard, and then go into the reserve forces until age fifty. This tripled the size of the National Guard, as tens of thousands of young men did their patriotic duty and joined the National Guard. America's old militia tradition that had defeated the British was in full swing, although the new National Guard could hardly be considered militia. They were trained as regular soldiers and lived in barracks for most of their time in the service.
National Guardsmen during a training exercise
The tactics of the army were also reworked, with the previous emphasis on individual unit operations replaced by mass formations and attack tactics. Huge numbers of new tanks were built, with the new Sherman tanks taking a lead role. They would become the the driving force of the American military machine. The new tactics were surprisingly similar to those which were used by the Soviet Union, although comparisons drawn between the two armies were silenced.
Over 70,000 Sherman tanks would be produced over the model's years of service
The Army Air Corps
The Army Air Corps underwent the largest expansion out of any of the military forces. This was mostly thanks to the enthusiasm of Charles Lindbergh who, having little to do as vice-president, started upgrading his favorite branch of the armed forces. As a big fan of the Messerschmidt fighters of the Luftwaffe, he wanted to adopt an interceptor similar in design. He found the F4F Wildcat, and after a few personal tweaks to make it lighter and faster, it was produced in mass to supply the AAC with a fast, powerful fighter. Variants would serve in the navy and marine corps. Over 10,000 would be construed in total.
The Wildcat, destined to be a staple of the AAC for years to come.
A new strategic bomber came into service as well. The Martin B-10 was introduced as the first all metal plane in the AAC, and was quite fast for a heavy bomber. Boeing (which was now government owned) showed Lindbergh their four engine B-17 "Flying Fortress" but he didn't like the design and the project was shut down.
The US Navy
Lindbergh knew exactly what he wanted the USN to have. Carriers. Lots and lots of carriers. In 1937, two were being built. By 1938, it was five. By 1939, it was up to ten. Dozens of smaller ships were built for the sole purpose of screening the carriers. Submarine projects were abandoned in favor of building more carriers. Although battleships were still a part of the navy, no more were built. Just carriers. There ended up being a total of 20 carriers built or under construction.
Carriers, carriers, and then... more carriers
At the same time, the US marine corps, under the command of General MacArthur, was expanded from 10,000 to 30,000, and new amphibious assault tactics were developed. The marines were fiercely loyal to MacArthur personally, and Henry Ford suggested that Long replace MacArthur with someone "a little more stable." Long ignored him, and that would cost him dearly.
Some of "MacArthur's marines" as they were nicknamed
The Militia
Personally loyal to Long and the Kingfish, The Militia were integrated into the army as an elite fighting unit. Although they still wore plainclothes to simplify their irregularity, they were as well trained and equipped as any other soldier in the army. They often received priority for the best equipment and supplies, and when war broke out they proved to be a deadly fighting force.
Although the American Military was still behind many other nations, in 1939 they were well on their way to becoming at least one of the largest military forces on the planet.