The war broke out, not the war of the People's Army against the Myeongjeong, but the war of the Wa Kingdom against Goryeo.

At the end of March, when everything was ready, Toyotomi Hideyoshi officially began the war against Goryeo in April, citing Goryeo's refusal to attack the Ming Dynasty.

On April 12, 18,700 men of the 1st Army of the Japanese Kingdom crossed the sea to Tsushima Island to stand by, on April 13, the order of the 9th Army arrived, and on April 14, the invasion of Goryeo's Japanese army/army landed in Busan first!

The Goryeo army also had a lot of troops, as many as hundreds of thousands, but the combat effectiveness of the Goryeo army was almost comparable to the escort of the landlords' armed forces in the Ming Dynasty.

The Wa Kingdom, after more than 100 years of the Warring States Period from the Onin Rebellion in 1467, was unified by Toyotomi Hideyoshi/Ichi, which can be described as the "Warring States Period".

It can be said that the strength of the Wa State/Army, which had just emerged from the Warring States Period, was somewhat inferior to that of the elite Ming Army, but it greatly surpassed the Goryeo Army, which was weakly armed.

Only nineteen days after landing on the Goryeo Peninsula, that is, on the second day of the fifth month, the Wa State/Army directly conquered the Goryeo King Gyeonghanseong, and the Goryeo King Yi Hao fled to Pyongyang, and the Wa State/Army only followed.

Compared with the Goryeo army, which had low combat effectiveness, the local strong villagers in Goryeo organized a volunteer army with strong combat effectiveness, such as Kwak Jae-woo of Seongju, Gyeongsang-do, who organized a volunteer army on April 21 and repeatedly defeated Anguksa Hye-kyung and prevented him from entering Jeolla Province smoothly.

Li Hao, who fled to Pyongyang, faced a large area of Goryeo that had fallen, and no longer knew what to do, the Goryeo army could not stop the Wa State/army at all, and if you wanted to resist or even defeat the Wa State/army, you had to find reinforcements, and now there is only one reinforcement in Goryeo, which is the suzerainty Daming.

Goryeo doesn't know much about the situation in Daming, but he also knows that the situation in Daming is a little bad, will Daming send troops to rescue Goryeo?

Regardless of whether the Ming Dynasty comes out or not, they have to try, and if this continues, all the land of Goryeo will be occupied by the Japanese state/army.

The war against Goryeo had already broken out, and without external reinforcements, Goryeo could not hold out for even a year, and on the other hand, the war of the People's Army against the Ming court was only a few months away.

The pace of war is approaching, but production and life in the KPA-ruled areas are still going on.

April is not over, Foshan Machinery Factory manufactured steam-powered machine tools earlier than planned, all the hydraulic machine tools in Foshan Arsenal were replaced, a large number of steam-powered machine tools were put into use, and the production efficiency of Foshan Arsenal was rapidly improved.

In the full hydraulic machine tool, the number of muskets produced in a month can not exceed 2,000, after replacing the hydraulic machine tool with a steam machine tool, the monthly output of muskets quickly exceeded 2,000, and now the monthly output has exceeded 2,500, with the workers skillfully using steam machine tools, the output will continue to increase.

The steam machine tools manufactured by Foshan Machinery Factory have met the requirements of Foshan Arsenal, but the production of Foshan Machinery Factory continues, and more steam machine tools will be produced, the main buyer is Fang's Chamber of Commerce, Fang's Chamber of Commerce will establish a new machinery factory for the production of steam-powered spinning machines, and the steam spinning machines researched by the Textile Machinery Research Institute have been practical and can be mass-produced.

The research of the Textile Machinery Research Institute continues, and the existence of steam spinning machines, and the lack of steam looms, both, will completely change the textile industry in the areas ruled by the People's Army, so that more people can afford to buy low-cost cloth, and families can wear new clothes every year.

Panyu County, Guangzhou City, belongs to the People's Army's Xinhui Shipyard, the steam engine ship project team and the Xinhui Shipyard's craftsmen and acres together to build a strange-looking ship, this ship is very small, than the People's Navy used the No. 2 Fu ship is a few circles, although the ship is small, but it has extraordinary significance to the People's Army, it will be the world's first steam engine ship.

It has been four months since the start of construction of the steam engine ship in the past new year, and the hull is three-quarters complete, but the remaining quarter is the most important part, the left and right sides of the hull have not yet been pressed on the large wheels to replace the sails and oars, and the steam engine and other parts customized from the machine factory have not been installed in the ship.

It is expected that it will take at least four months before the steam-engine ship will be able to launch and conduct sea trials.

As the world's first steam engine ship, as an experimental ship, it is normal for various problems to occur, and the task of the steam engine ship project team is to solve all kinds of problems one by one.

Fang Nan once found time to inspect the Xinhui shipyard, and for the construction of steam engine ships, Fang Nan could give little help, and the same was true for trains, most of which depended on the efforts of researchers.

At present, the education system of the People's Army is dominated by more than 5,000 primary schools, which can train a large number of intellectuals for the People's Army every three years, and supplement them to the military, government, research, and business.

In addition to primary schools, girls' schools and universities, the KPA also has technical schools, and in January last year, the first technical school under the KPA was opened, with a duration of only half a year, where students learn how to use machine tools, and after graduation, students enter machinery factories and arsenals for internships.

As long as the students trained by the technical school are to enter the factory to control the machine, the place where they can work is basically in Foshan, so that the new technical schools of the People's Army are built in Foshan, and now the number of technical schools has increased from one to five.

However, this year, the school system of technical schools is also increasing, has increased from half a year to one year, technical schools are trained are junior skilled workers, need literacy and arithmetic, just half a year, can not allow students to effectively learn common words and simple arithmetic, increase the school system has become the only choice.

In the future, with the increase in the number of primary schools, the number of junior intellectuals graduating from primary schools will increase greatly, and they will choose to let primary school graduates enter technical schools to learn technology.

In the past, the skilled workers in the People's Army factories were all transformed from craftsmen, but craftsmen are limited, and it takes a lot of time to train a craftsman according to the traditional method, and the skills of this craftsman are more and more miscellaneous, and the craftsman who specializes in making muskets can even build a musket.

However, there is no graduation in the People's Army, and skilled workers basically only need to master one process, and they can train junior skilled workers in a targeted manner, and they can be trained in large quantities in a short period of time through technical schools.

Man, machine, capital, environment, all kinds of conditions combined, the KPA's industry began to develop greatly.