The time has entered February, and the weather is slowly beginning to get warmer, but occasionally when the north wind blows, it still makes people feel the biting cold, especially at night, and sometimes there are a few traces of spring rain falling in the sky, all say that the spring rain is as expensive as oil, but for people who are in a hurry, the spring rain is like a piercing steel needle, accompanied by the cold wind blowing to the face, as if to puncture people's skin.

Before dawn, Li Xiu had already been woken up by the noise outside, and at that moment he got up from his sleeping bag, talking about his sleeping bag, he still designed it himself, and then asked Princess Pingyang and Yuechan to make it for themselves, which looked similar to the sleeping bag of later generations, but it was stuffed with thick cotton, which was actually a large quilt sewn up.

"Don Ma, you're awake, hurry up and eat, it's our turn to cross the Yellow River today, so we have to set off early." At this moment, he suddenly heard a voice from the side, and he didn't need to look at Li Xiu to know that it must be Cen Wenwen, who slept in the same tent as him.

After leaving Chang'an, Li Shimin led the army all the way, although the road was full of towns, but they simply had no ability to arrange food and lodging for tens of thousands of troops, so the general army was to set up a temporary camp in the field at night, and the conditions were very limited, so in addition to Li Shimin, the emperor, who lived in a tent by himself, everyone else had to live with others, such as Li Xiu and Cen Wen lived in a tent.

Of course, there are not a few ministers in the army who are good friends with Li Xiu, such as Qin Qiong is also in the army, but Li Xiu is reluctant to live with these generals, because these people snore, fart, and grind their teeth when they sleep at night, and they don't have peace all night, and they don't want to sleep peacefully when they live with them.

"Jingren, you woke up so early, what time is it?" Li Xiu sat up at this time, and then stretched a long lazy waist and said, in the past few days, Li Xiu was not lightly tired, even if he had slept for a while, he still felt a little sore all over his body.

"It's already halfway through the hour now, and we'll leave when it's time, so we have to hurry up and wash up and eat." Cen Wenwen was already dressed at this time, and then picked up the cotton boots next to him and put them on his feet and said.

When Li Xiu heard this, he hurriedly untied the strap on the sleeping bag, and then began to get dressed, after all, the army would not wait for anyone, and he would set off when he said it, even Li Shimin could not delay the march because of personal matters.

"This sleeping bag for the colt is so handy and it looks warm, I'll have someone make one for me when I'm free!" After Cui Wenwen saw Li Xiu get dressed, he folded the sleeping bag in three or two clicks, compared to the fact that it took some time to clean up his futon, so he was also very envious.

"No need to do it, I have two sets for me at home, one of which I haven't used yet, I'll give it to you in the evening!" Li Xiu said with a very cheerful smile, he thought of the idea of sleeping bags a little late, so he only had time to ask his family to make two sets for himself, otherwise it could be promoted in the army.

"This ...... What's so embarrassing about that? Cen Wenwen said a little embarrassed at the moment, in fact, he woke up once last night, although the bedding he brought was very thick, but last night's wind was strong, and the tent was too simple, so he couldn't isolate the wind at all, and his hands and feet were numb in the middle of the night, but Li Xiu slept very peacefully all night, and he was also very envious at that time.

"It's just a sleeping bag, in fact, I originally wanted to promote it in the army, but it's a bit too late, you use it first, if it feels good, then we will recommend it to Your Majesty, and the soldiers in the army can use this sleeping bag in the future." Li Xiu immediately spoke again.

Hearing Li Xiu say this, Cen Wenwen did not refuse again, and accepted Li Xiu's kindness with a smile, and after the two of them got dressed, they asked people to fetch water and wash themselves, and then went out to have breakfast together, compared to ordinary soldiers, the treatment of these ministers is naturally much better, but even so, breakfast is relatively simple, nothing more than rice porridge and steamed buns, of course, there is not so much attention to the march, and even Li Shimin eats the same breakfast as them.

After breakfast, the sky in the east only shone slightly, with Li Shimin's order, the army marched again, Li Xiu was wearing cotton clothes inside, and a layer of leather armor was covered outside, this is not for the sake of good looks, but leather armor can block the wind, riding on a horse will not be so cold, speaking of which, although he is a civil official, but along the way he also rode on horseback like a military general, in fact, except for a few old and frail civil ministers, almost everyone else is on a horse, even Li Shimin is no exception.

The army marched all the way to the northeast, and when it was almost noon, it rushed to the Yellow River crossing, compared with the Yellow River in later generations, the flow of the Yellow River in this period of the Tang Dynasty was larger, and the weather warmed up quickly this year, so the Yellow River had already been civilized, but unfortunately Li Xiu did not have time to catch up with the wonders of the Yellow River.

Now you can occasionally see one or two pieces of ice floe on the river, but the impact is not great, and the pontoon bridge on the river has also been built, this pontoon bridge is located in the north of Zhengzhou, the river is frozen in winter, dismantled when the river is frozen, so as not to be damaged by the ice, and wait until the river is civilized and then put on, it is also convenient for pedestrians on both sides of the bank to pass.

However, this year, after the pontoon bridge was built, it was immediately requisitioned by the army, and the army has been passing through a few days ago, but because the number of troops is too large, the materials carried are very large, and the transportation capacity of the pontoon bridge is very limited, so I am afraid it will take half a month to completely pass here.

The bridge deck of the pontoon bridge can only allow two carriages to run in parallel, even if the river surface here is already the calmest river surface in the middle and lower reaches of the Yellow River, but because the river is more turbulent in spring, the bridge deck also keeps going up and down, Li Xiu did not dare to ride a horse at all, after all, one may fall into the river if he is not careful, so he also got off the horse, and then walked through the pontoon bridge, when he walked, he was also very worried in his heart for fear that the rope pulling the pontoon bridge would suddenly break, and finally fortunately there was a thrill and danger.

The army crossed the Yellow River and entered the territory of Hebei Province, and after Hebei was Liaodong, and now a national war had been launched in Liaodong, and Li Shimin's heart had already flown to Liaodong, so he had been desperately urging the army to hurry along the way, and finally arrived in Liaodong in late April, and at this time Li Ji's army also killed under the city of Anshi.

When Li Xiu heard the name of Anshi City, he couldn't help but feel nervous, because he thought that in history, the Tang army was blocked by this fortified city, and it was not until winter came that Li Shimin had to silently retreat, and this time the Tang Dynasty would repeat the fate of the original history?