"Back to His Royal Highness, compared with what Lord Zhang said, it is more than that, because of the decrease in the financial revenue of Nanzhao in recent years, so the treatment of soldiers is constantly declining, and many people have already left the army, after all, Nanzhao has been safe for a long time, and the people in the army have no chance to perform.

Regarding the affairs of the army, no matter which region it is in, it is the top priority, so when Long Wu investigated, he sent the most people to the army, and the news he got now is also the most accurate, according to what some local soldiers said, the original generals are still majestic, and the current generals are all newly appointed, and some of them have not even fought a battle.

As for these soldiers, not to mention, the veterans have gone out to make a living, and the recruits have no decent training when they arrive in the army, mainly because there has been no war in Nanzhao for decades, in this case, who can remember some things about the army?

"What about Annam, Pi (Burma) and Siam in the south of Nanzhao? What's going on on their side? ”

Li Xiang remembered some countries in South Asia, which can not be called countries now, just some relatively large city-states, the Tang Dynasty does not have many records of them, and the envoys sent by these countries are also not waved, sometimes when they think of it, they go to Chang'an City to pay tribute, and if they can't think of it, it will be over.

According to the idea of the ruler of the Central Plains, these people live in a barren land anyway, and it is estimated that it will not be easy for them to survive in that place, so it doesn't matter if they come or not, they don't want to have anything to do with them anyway.

"There are not many border conflicts between the two sides, and even if there are, they are on the scale of a few hundred people, mainly because there is no strong rule in those areas, except for Annan, which has occupied our country, the others have nothing to do with us, to put it bluntly, when we are strong, they retreat, and when we are weak, they advance."

This summary of Long Wu is very in place, the southern countries are still in ambush, they don't have a strong organization, some people know the Tang culture, and some people don't know at all, so these people don't have to be afraid now, but it is also the best time to take them, if some powerful countries are established, then I'm afraid we will start fighting again.

"However, according to what we have investigated, the environment of the southern countries is really very poor, including some people in Nanzhao, they have no interest in those places, we ......."

Long Wu said a little strangely, although the Tang Dynasty cannot be said to be rich all over the world now, at least the useful places have been occupied by us, and it is useless to take those places, I don't know why His Royal Highness the Emperor Taisun wants to go south one by one? Can those places bring us any improvement?

Li Xiang turned his head and looked at these people around him, including Zhang Jiuli, they all looked puzzled, of course, this is also a very normal thing, in this era, everyone pays attention to the Heavenly Empire, the most important thing is the Central Plains, as for other regions, no one can look down on them at all, just take the current Tuyuhun and Turkic as far away, let alone the more distant South Asian countries.

In their opinion, the people there can't be called barbarians, and these people in Sichuan Tusi can be regarded as barbarians.

People from South Asian countries can only be regarded as monkeys, in the hearts of many Tang people, these people still eat raw meat and live in trees every day, what is the use of us taking down this kind of place? It's nothing more than a waste of our money.

"I know you have a doubt in your heart, but if I say this, I believe your doubts will be alleviated, how much grain is ripe in the north of our country a year?"

Li Xiang asked a very simple question, and Su Dingfang answered it very well, taking Liaodong as an example, at most, it is one crop a year, and the yield is not high, mainly because the weather is too cold, although there is a lot of land reclaimed now, but the grain output still cannot go up.

"What about Chang'an and the Central Plains?"

Everyone has not yet realized the effect of Li Xiang's question, and they all answered honestly that this area can reach three crops in about two years, and the grain output is much better than that of Liaodong.

"And what about going further south to the Jiangnan area?"

When saying this, everyone's eyes lit up, everyone knows that Jiangnan is rich in the world, even in the Sui and Tang dynasties, why did Emperor Yang of the Sui Dynasty dig a Grand Canal? It is because the grain in Guanzhong is not enough to eat, so it is necessary to use the Grand Canal to transport the grain from the south, and the grain here can basically be cooked twice a year, and the output is more than twice that of Liaodong, and it is not an exaggeration to say that it is the granary of the entire Datang.

When he heard everyone's answer, Li Xiang also nodded with satisfaction, since Li Xiang took over these people, he let them study the knowledge of the entire Tang Dynasty, and the learning is not bad at present, not that the leader of the army is only in charge of the affairs of the army, and the official only cares about his share, but the whole people must understand.

"You may not have heard of the following things, but maybe you have heard that in the place where Jiangnan continues to the south, to the Lingnan region of our country, then some places here are guaranteed to have two crops a year, if you are diligent, it is possible to achieve three crops a year, of course, it is not necessarily possible to guarantee all, but the countries we are talking about in Annan, they can all achieve three crops a year."

When Li Xiang's words were finished, the people present were really stunned, they originally thought that these areas were barren land, and they didn't think of including them, but if they had land that crops three times a year, then this would be completely different, even a little better than the Jiangnan area.

Now it is an agricultural society, whoever has more food can guarantee whose population is large, whose population is more can ensure whose social prosperity, whose social prosperity also represents whose comprehensive national strength is strong, why can Datang make the surrounding countries bow their heads? It is not precisely because we occupy a large number of grain producing areas that our comprehensive national strength has risen.

"Your Highness, if it is really the same as what you said, then these countries should be extremely powerful, but why don't they even have a unified centralized power now?"

Zhang Jiuli said a little strangely.