According to the set of plans formulated by the "Delta Galaxy", this series of "ciphertext letters" is a "saturation operation".

According to the saturation plan of "Delta Galaxy", there will be multiple groups of Rotiri's Sedili soldiers in charge of the operation, and they will deliberately let the other party obtain letters with similar "ciphertext" content through different means.

This is important in different ways - if the same method is used to deliberately "lose" the letter, it will more or less arouse suspicion among the enemy.

And once the enemies become suspicious of these letters, they will not study them further, and the next series of ambushes on the giant vehicle will most likely fail.

......

Now, another group of Rotirito Sediri soldiers have also arrived in the desert area of the operation, ready for everything.

This group of soldiers is also a group of cavalry, but these people are a mixture of archers and spear cavalry.

The soldiers, having done their homework before this operation, had studied the enemy's patrol routes near this side for several days before that.

After some research, it was found that the enemy's patrol routes around here were relatively fixed - which naturally laid a certain foundation for the subsequent "ciphertext letters" of these Rotirito Sedili soldiers.

Now, the Rotiriño Sediri soldiers, who were in charge of the operation, set up a makeshift camp of improvised tents on the edge of the patrol path shortly after the enemy had made a midday patrol.

It seems that there are not many tents here, and as a camp, it seems that there are some shortcomings - however, time does not allow these Rotiri Sedili soldiers to set up more tents.

Of course, these tents are not really camps, and this "temporary camp" is just a large prop needed for this "ciphertext letter" operation.

It took a lot of effort for these Rotilinians to launch the "cipher letter", after all, if this operation is successful, they will then be able to gain a great advantage when attacking the enemy's giant vehicles, and then destroy the enemy's giant vehicles, strategically, slow down the actions of those invaders.

Here the soldiers of Rotiri, who had been in action, waited quietly, waiting for the enemy to patrol through the place again.

"Here they are!" a soldier in charge of the sentry looked into the distance and suddenly reminded the soldiers in action.

"Not bad!" said the cavalry captain in charge of the operation, looking in the direction pointed by the soldier next to him, "Although this is all acting, we still have to act like this, and don't run away as soon as we see the enemy!"

"Understood! of course!" the soldier on the side arrived.

"Very well! when the other side gets closer, we will attack quickly!" said the cavalry captain to the soldiers around him.

The patrolling enemy, numbering about fifty men, wore battle clothes made of cloth, and each of them held in his hands a long-pole weapon capable of attacking like artillery.

Now, your own cavalry archers are lying in ambush behind the dunes.

"Okay, ready...... Shoot the arrows!"

As soon as the cavalry captain gave the order, the cavalry here released arrows one after another.

Arrows, whizzing, flew towards the unarmored foes.

Immediately after, from the enemy not far away, a noisy shout was heard.

Those enemies began to quickly line up in two rows in the direction of the attack.

"Quick, get down, keep ......your head down," the cavalry captain hurriedly reminded the cavalry captain as he looked at the soldiers beside him—he knew very well how the enemy would attack next.

The soldiers of Rotiri fell down on the sand and hid behind the gentle slope.

In the midst of the dreaded gunfire of the enemy, the bullets crackled and struck the sand not far ahead, raising a cloud of dust.

In the distance, the scattered gunfire of the enemy continued.

"Alright, mission accomplished, let's leave camp and retreat!" shouted the cavalry captain, as he began to lead his soldiers, prostrate and retreat towards the nearby boulders, behind which were the mounts of the soldiers, and his own cavalry immediately behind.

After retreating behind the stones, the cavalry could quickly flee from the patrolling enemy on horseback.

This time, the letter with "encrypted text" was placed in the camp - these operatives had to make the illusion that they were in a hurry to flee and had no time to take the items in the camp.

......

Other groups of soldiers also used different methods to keep the letters with "encrypted text" written on them within the reach of the enemy.

The movements of several groups of soldiers were quite smooth.

Next, it's up to the enemies to discover and decipher the letters.

......