few per vessel, and vessels usually lacked the firepower or range of their Korean counterparts. In order to bolster their fleet, the Japanese considered employing two Portuguese galleons in the invasion. In addition to a lack of effective naval armament, most Japanese ships were modified merchant vessels more suited for transportation of troops and equipment than fielding artillery weapons.Strauss, Barry. p. 10 Ongoing Bozhou Miao rebellion in China The Bozhou rebellion by the Chiefdom of Bozhou, which lasted from 1589–1600, was going on in Bozhou (Zunyi, Guizhou) in southwestern China at the same time as the Imjin war in Korea. After winning the war, General Chen Lin would later return to Guizhou to quell the uprisings. Korean military reorganization Proposal for military reforms During the period between the first and second invasions, the Korean government had a chance to examine the reasons why they had been easily overrun by the Japanese. Ryu Seong-ryong, the Prime Minister, spoke out about the Korean disadvantages. Ryu pointed out that Korean castle defenses were extremely weak, a fact which he had pointed out before the war. He noted how Korean castles had incomplete fortifications and walls that were too easy to scale. He also wanted cannons set up in the walls. Ryu proposed building strong towers with gun turrets for cannons. Besides castles, Ryu wanted to form a line of defenses in Korea. In this kind of defense, the enemy would have to scale many walls in order to reach the capital, Hanseong. Ryu also pointed out how efficient the Japanese Army was, since it took them only one month to reach Hanseong, and how well organized the Japanese were. He noted how the Japanese moved their units in complex maneuvers, often weakening their enemy with the use of arquebuses, then attacking with melee weapons. Military Training Agency King Seonjo and the Korean court finally began to reform the military. In September 1593, the Military Training Agency (훈련도감, alternately translated as Military Training Command) was established. The agency carefully divided the army into units and companies. Within the companies were squads of archers, arquebusiers, swordsmen, and spear infantry. The agency set up divisional units in each region of Korea and garrisoned battalions at castles. The agency, which originally had less than 80 troops, soon grew to about 10,000. One of the most important changes was that both upper-class citizens and slaves were subject to