Since he couldn't attack the headquarters of the Japanese 21st Army, Lin Fan could only go and take a look at the port where the Japanese Fifth Fleet was stationed outside Guangzhou.

After occupying Humen Fortress, the Japanese Fifth Fleet had already sent troops to garrison the fortress, and at the same time, they were using it as a port for the Fifth Fleet, mooring their warships there.

Lin Fan could only look at Humen Fortress and the port on the Pearl River from afar. Before Humen Fortress was occupied by the Japanese, it had already been built with a complete road traffic system. From a distance, he could see that the roads in the fortress were well-connected in all directions, but Lin Fan didn't know where these roads led.

If he wanted to attack the Japanese Fifth Fleet docked at Humen Port, he had to have a clear understanding of the gun emplacements on the fortress.

The first time, Lin Fan just kept the situation he could see in his mind. After returning to Zengcheng, he immediately asked Yu Hanmou, the commander of the Fourth War Zone, for detailed drawings of Humen Fortress and the military port.

Yu Hanmou already knew something about the Special Operations Brigade's habits, and he believed that Lin Fan wouldn't ask for these drawings without a purpose.

Although Lin Fan didn't publicize the battle of burning ten Japanese cities, the Fourth War Zone, as the local power in Guangzhou, had been painstakingly operating for decades. Whether in Guangzhou or among the high-level officials of the Kuomintang army, there were many people willing to provide them with information.

Yu Hanmou knew that the Special Operations Brigade had launched a bombing raid on the Japanese mainland and specifically sent people to Hiroshima, Nagasaki, Tokyo, Kyoto, and other places to check the details.

The National Revolutionary Army had been fighting the Japanese for so long, and the two sides had reached the point of fighting to the death, but neither side had declared war, and on the surface, the two sides were still countries with diplomatic relations.

Therefore, although civilian exchanges were subject to very strict checks, they were still possible.

The personnel sent by Yu Hanmou reported back that a great fire that night had burned several blocks of Hiroshima into a wasteland.

The fire burned for three days and three nights without extinguishing. The Hiroshima Shipyard, power plant, and arsenal were all burned down and have not yet resumed production.

Chen Ce said with a wry smile, "When I was the commander of the fortress, I saw that the entire gun emplacement was bare, and the target of the gun emplacement was very obvious.

"In order to improve the survival rate of the gun emplacement, I ordered people to plant trees vigorously so that the gun emplacement would be hidden in the woods.

"This way, it would not be easy to spot the gun emplacement from the air.

"I didn't expect that it would be convenient for the Japanese now!"