"What do you mean?" Major Gavrilov took the gas mask and looked at it.

Shulka looked around, and Major Gavrilov understood, and motioned for the other officers to disband, and he even asked the guards to clear a corner next to him...... The secrecy system of the Soviet army is too weak, especially now, a soldier who escapes at random may leak the secret again, and no one dares to take this risk.

Only Gavrilov, Commissar Fomin, and Shulka were left at the table.

For the commissar of Fumin, Shulka is relieved, because in history, when the commissar of Fumin was captured, he disguised himself as an ordinary soldier, but was betrayed by a traitor and his identity was exposed, and he was shot by the Germans outside the gate of Holm. (Note: The political commissar Fuming in the movie took the initiative to stand up, which is inconsistent with historical facts)

"What do you want to say, Shulka?" Major Gavrilov raised the gas mask in his hand.

"Major, I believe it has a good seal!" Shulka said.

"Yes, of course!" Major Gavrilov replied: "It is used to prevent poison gas!" ”

"And we can see through those two panes of glass." Shulka pointed to the part of the eye on the gas mask and said, "I'm sorry, I don't know what it's called!" ”

"Windows!" Commissar Fuming said: "Round window! ”

"Yes, Windows!" Shulka continued: "And it also has a long extension tube ......"

"What the hell are you trying to say, Shulka?!" Major Gavrilov interrupted Shulka with some impatience: "Now is not the time to learn how to use a gas mask!" ”

"Of course, Major!" Shulka took the gas mask and gestured as he said, "Good seal, window, and an extension tube...... I wondered, can we use it to breathe underwater? ”

"But why do we breathe in water, we don't even ...... water" As soon as he said this, Major Gavrilov understood what Shulka meant, he was stunned for a while with his mouth half-open, and then nodded again and again with a smile on his face: "Good idea, Shulka, it's a good idea!" ”

"What?" Commissar Fuming still didn't understand what was going on.

Major Gavrilov looked around, then made a small gesture, then lowered his voice and said, "If we can breathe underwater, we can send a force under the cover of the river to wherever we want to go, I mean the other side!" ”

"Yes!" Shulka nodded, "That's what I'm saying, we just need to do some simple modifications to the gas mask, and then it will be our wetsuit, and we can reach the opposite bank under the river without knowing it, and then launch a surprise attack on them!" ”

Commissar Fuming's eyes couldn't help but light up, he turned his surprised gaze to Shulka, nodded and said, "It's a good idea indeed, Comrade Shulka, this may save us all!" ”

"How are we going to remake it?" Major Gavrilov asked.

"I think we should change ...... this," Shulka said, "take out the end of the extension tube and attach it to a wooden block pontoon so that it always floats on the surface so that we can breathe air underwater!" ”

Major Gavrilov and Commissar Fomin nodded repeatedly.

"We also need to tie bricks to our calves!" Major Gavrilov, who is familiar with the nature of water, added: "Otherwise it is difficult to maintain balance in the water and it is difficult to move around!" ”

"Yes!" Political Commissar Fuming said: "We also need to know the depth of the water, if the water depth exceeds two meters and a half, there may be a danger of submergence!" ”

"How can we know the depth of the water?" Shulka asked, something he hadn't expected.

"Easy!" Major Gavrilov, while putting away his gas mask, shouted to the rear: "Karpsha! ”

"Yes, Comrade Major!" One of the guards trotted over at the sound.

Major Gavrilov made a gesture on the map and asked: "Do you know the depth of the surrounding rivers?" ”

"Of course, Comrade Major!" Karpsha replied.

"I need you to mark the water area of about two and a half meters, is that okay?"

"Yes!" Karpsa replied very simply, picked up the pen and marked it on the map and said, "This, this, return this...... The current here is a bit more rapid, but here it is gentle! ”

It didn't take long for a simplified version of the hydrological map to appear.

After Karpusha left, Shulka asked with some concern, "Is this reliable?" ”

"Reliable!" Major Gavrilov replied: "He fishes in this river every day and is familiar with everything about it!" ”

"Okay!" Shulka was a little helpless.

You know, it only takes a little bit of it to put the whole operation in jeopardy, and everyone's lives may depend on this plan.

But he seemed to have no other choice, because it was only more than two hours before dawn, and the German blockade on the banks of the river was so tight that there was no time to reconnoiter the waters one by one.

"So, let's figure out where to attack!" Major Gavrilov said.

"We don't seem to have a choice!" Commissar Fuming proposed: "After the church, because we only need to cross a river in this area!" ”

What Commissar Fuming said may be correct, and it is also because of this that Shulka chose to break through after the church.

In other directions, any point of breakthrough will lead to another island after crossing the river, and then there will be a river crossing to break out of the encirclement.

Major Gavrilov did not seem to have any objection to this, but Shulka shook his head.

"I don't think we can break through from here, Comrade Commissar!" Shulka said.

"Why?" Political Commissar Fuming asked.

"First of all, the Germans blocked the river to prevent us from getting water!" Shulka explained: "This means that we can only send small troops to sneak up the river!" ”

Political Commissar Fuming nodded: "There are many people, and they will be discovered before they enter the water!" ”

"Yes!" Shulka continued: "And the enemy has laid a heavy force in these parts, and we are only a small number of sneak attacks that will not do anything at all!" ”

"Then ......" Major Gavrilov nodded, "we will only be able to choose one of the three islands!" ”

The Kobrin fortress to the north was the first to be excluded, as the Germans had just occupied it and a large number of German troops were consolidating their defenses.

Instead, the two forts to the southwest and south were relatively small because the Germans thought they had cleared the remnants of the enemy and consolidated their defenses.

"I think we should choose the West Island!" Major Gavrilov said: "Because it is a stone bridge, it is convenient for the attack, and the South Island is a rope bridge!" ”

"No!" Shulka said: "Comrade Major, I think the South Island should be chosen!" ”