The grain road, as the name suggests, is the only way to transport grain and grass, and it is the lifeline of the army's operations. For example, in the Battle of Pingxingguan in modern warfare, the Eighth Route Army was the annihilated Japanese baggage force, and in the words of ancient warfare, it burned part of the enemy's grain and grass. Moreover, the sabotage warfare carried out by the Eighth Route Army behind enemy lines was to specifically destroy the transportation of the Japanese army, and the ancient war called it attacking and harassing the grain route or cutting off its grain route. The Eighth Route Army's sabotage warfare interfered with and delayed the supply of strategic materials to the Japanese army, and effectively cooperated with the frontal battlefield.

It is expected that some people will ask: the fragility of the grain route is due to the fact that the geographical situation is dead and difficult to change. But the grain and grass are alive, and the grain and grass can be together with the main combat force at any time, so isn't the grain and grass very safe? Zhao Yu tells you based on his own experience that it is theoretically feasible, but in practice it is not feasible.

Because what combat troops need is mobility and flexibility, if they keep walking in step with the baggage, it is estimated that they will not be able to win this battle, so no matter how stupid the commander is, he will not do this. Even if Zhao Yu set up a special baggage army in order to ensure the supply of materials at the beginning of the army, it was only able to ensure that the self-sustaining power of the troops was extended for more than ten days, and it was more to undertake the tasks of material transfer, storage and distribution, and vigilance, and could not undertake long-distance transportation to ensure the long-term supply of materials for the entire army.

Of course, there are always exceptions, that is, nomads like the Xiongnu and Mongols fought and basically did not need to transport grain over long distances. Because they did not need food, they went out with three or four horses per person to carry their wagons and baggage tents, and herds to follow. They quenched their thirst by milking goats and milk when they were thirsty, and ate mutton when they were hungry. Cows and ewes can also give birth to calves and lambs, and the grain and grass naturally circulate automatically.

Some people may also say that "war is fed by war" and "food is used by the enemy", so that we can get rid of the trouble of grain, grass and grain roads? In fact, it is still theoretically feasible, but in practice it is difficult. You want to be the enemy because of the food, and the opponent still wants to implement the policy of "clearing the wilderness" and "scorched earth resistance". If you want to plunder in the occupied areas and learn from the "three-light policy" of the Japanese invaders, it is also to quench your thirst. The Mongols in front of them are an example, and if they are weakened or lose their targets for plundering, their finances will soon be beyond their means and they will be on the verge of collapse.

Therefore, in the course of the operation, Zhao Yu not only aimed the combat targets at the important cities and passes, and attacked them one by one, but also took the control of canals and water transportation hubs as an important task of the troops participating in the battle, in order to ensure the smooth passage of transportation and prevent the loss of retreat routes and the loss of grain and grass supplies in the event of an unfavorable attack. At present, the two sides have gathered hundreds of thousands of troops on the battlefield, and the confrontation between the two armies is at a moment when it is difficult to distinguish between the upper and lower levels.

Zhao Yu believes that whoever has enough resources and can send them to the front-line army will be able to hold out until the final victory. In the battle of Guandu between Cao Cao's army and Yuan Shaojun's army, one of the important reasons why Cao Cao was able to defeat the strong with the weak and achieve a decisive victory against Yuan Shaojun's battle was that he understood the vital importance of food to the victory or defeat of the war. Therefore, he adopted the suggestion of the general Xu Yu in time, and personally led the army to burn down Yuan Shao's Wuchaotun grain station, so that a large number of grain and materials that Yuan Shao's army relied on to live and fight were suddenly turned into ashes, forcing Yuan Shao to abandon his armor and flee, thus laying the foundation for the final victory over Yuan Shao's army.

At present, due to the long-term implementation of the fiscal policy of relying on the south of the Yangtze River, Mengyuan has lost the Lianghuai, which is an important place of wealth, which has caused a financial crisis. Moreover, the grain production and reserves in the north could no longer guarantee a long-term supply, but they had to deal with the attack of the Song Dynasty, so a protracted war was extremely unfavorable to them. The most effective way to achieve a quick victory was to cut off the grain routes of the Song army, destroy the grain, grass and materials stored on the front line, and force the Song army to retreat.

Zhao Yu also knew that even if he was sitting on the rich land in the south of the Yangtze River, it would be very difficult to support this Northern Expedition, if the enemy army took a risk, attacked his logistics support base, and destroyed all the supplies. Remobilization, not only does it take time, but it also requires a lot of money. Even if he can barely maintain it, it will be difficult to launch a new offensive, forcing himself to shrink his line and maintain the existing one. At the same time, it will also aggravate the financial difficulties of the imperial court.

This is also the reason why he was very nervous when he found that unknown people appeared around the camp, which was not only where his camp was located, but also more than 1,000 boats moored, loaded with 400,000 stone of grain, more than 300,000 catties of gunpowder and a large number of shells and bullets. Once it is successfully attacked by the enemy, it is enough to cause the Battle of Xuzhou to be delayed or abandoned, and the desire to recover the two capitals can only be 'Wangjing sighs'......

"Your Majesty, my subordinates dispatched a regiment of troops to search the reeds within a radius of more than ten miles together with the navy, and no one was found!" The search lasted more than two hours, and more than 2,000 troops participated, but they returned in vain. Seeing that it was past noon, Luo Datong got on the boat and asked if he wanted to continue.

"Your Majesty, this reed is huge, and searching for a few people in it is tantamount to looking for a needle in a haystack. The little one once heard that there were often people who committed crimes and would hide in the reeds, and the officials in charge of the search and arrest would not pay attention to them, but just guard the surrounding roads, and when the villagers harvested the reeds after the autumn, the people who were hiding at that time would have nowhere to hide, and they would go in to arrest them! At this time, Wang De interjected.

"In that case, let's withdraw our troops!" Zhao Yu pondered for a moment and said.

"Your Majesty, if you set this reed on fire, even if he is an immortal, he will be burned to death!" Luo Datong also has some nests, and thousands of people tossed by a few people can't live in peace. And the other departments have already gone out to fight, but they left themselves to guard the camp, and their hearts were not happy, and they were even more angry and hateful when they were combined.

"Set fire?! You die! Zhao Hao listened and said angrily, the reeds are all over the lake and the shallows, if they are lit, they will burn the company camp, and if they affect the camp, they will pay it back. But he quickly thought of something and muttered softly, "No......"

"Your Majesty......" Luo Datong was confused by His Majesty, and wanted to ask out loud, but was stopped by Tan Fei on the side.

"This time, the enemy is spying on the military situation, do you want to sneak attack our rear camp and destroy the grain and grass?" After a while, Zhao Yu looked at the two of them and asked.

"Your Majesty, our army has taken control of all the main roads, and it may be difficult for one or two spies to sneak in, but they will do nothing either. And the enemy sent a large number of elite soldiers to sneak attack, but it was difficult not to be detected! Luo Datong shook his head and said.

"Will they infiltrate through the waterways?" Zhao Hao asked again.

"Our army has already controlled the canal, it is impossible for them to infiltrate from the canal, even if it is ......" Tan Fei felt that His Majesty had thought too much, there were inland river armies in the upper and lower reaches of the canal, and there were marine brigades controlling the hubs and sluices, which were more tightly defended than the land routes, after all, there was only one canal, and there were countless large and small passages on land, so it was inevitable that there would be omissions. But when he saw that His Majesty had been staring at the lake, he was also shocked and said in a cold sweat, "Your Majesty is worried that the enemy army will infiltrate the rear through the waterway of the lake and sneak attack our army's camp!" ”

"That's right!" Luo Datong also came to his senses when he heard this, and said, "The waters of the lake are wide, connected to several places, and connected with the water surface of Fuli, they can completely sneak into the zero wall through this road." ”

Confirming his thoughts, Zhao Yu set his sights on the wide lake, the lush reeds and the water village in the river, the reason why he chose to set up camp by the lake was also to consider that a large number of boats stayed in the canal, once attacked in the narrow river it is difficult to evacuate in time, which will cause incalculable losses. So they chose to set up camp by the lake, not only to facilitate the army to get water and guard, but also to facilitate timely transportation.

The materials are loaded on the boat, so that there is no need to load and unload back and forth, wasting manpower. Where needed, the boats can be grouped into the canal to reach the destination, which can save a lot of manpower and material resources, and reduce the number of people who accompany the boats, so that it can not only increase the labor force in the rear, but also reduce the consumption of food in disguise, which is a matter of killing two birds with one stone. As for the enemy's attack on the grain road and plundering the grain and grass, Zhao Yu was not without consideration.

However, thinking that the two armies were facing Fuli, according to Lingbi, there were still a hundred miles away, and the enemy army would have to cross the multiple defense lines of the Song army if he wanted to send troops to attack, so it was extremely unlikely that a large army would be sent to attack. The most likely way to do this is to use small groups of elite troops to take advantage of the loopholes in your own defense line to sneak into the rear and carry out surprise attacks, but they are too small to transport supplies back to your own station, and arson is the most feasible way to destroy them on the spot.

In this way, the camp's proximity to the water made the enemy's method of burning rations ineffective, and after being attacked, the boats were able to evacuate to the lake in time, making the enemy's tactics frustrated. But now there are still omissions in the seemingly well-thought-out plan, Zhao Yu did not expect that the enemy army can also use the waterway in the lake to invade his rear, so that he can not only use the reeds to send a small group of elite troops to infiltrate, but also use boats and boats to mobilize troops to attack. Now that the reeds have turned green, the main pole is still dry and flammable, and they can even put their camp in danger of being surrounded by fire by lighting the reeds.

The person who was accidentally found in Weidang today, Zhao Hao can basically conclude that it is a scout sent by the enemy army. After they discovered their own grain storage place, or even the location of the emperor's camp, as long as the generals with a little brain, they would definitely not let go of this opportunity to turn the tide of the battle. As long as you succeed in destroying the enemy's food and grass, you can make the army in front panic and then withdraw your army; If you can get away with capturing or killing the enemy's emperor, then you can not only achieve immortal achievements, but also collapse the enemy army.

"Your Majesty, my subordinates think that no matter whether the enemy has a plan to attack our army's camp or not, we can't take it lightly, and we must prepare early!" Luo Datong was also in a cold sweat, not to mention letting the enemy burn the grain and grass, or hurting His Majesty's hair, as the main general of the escort, he could not escape the blame......