The Federation's army has conducted training exercises for street combat.
Considering that there is a possibility of invasion in the future... no, there is a possibility of being invaded by other countries, the long East Coast practically lacks any defensive capability.
The Federation cannot transform the entire coastline into an impenetrable defense line. The only thing it can do is build some fortifications to delay the enemy's landing as much as possible.
But ultimately, the enemy will undoubtedly set foot on the Federation Mainland. If the war has progressed to fighting the enemy at one's doorstep, it means the Federation's navy is already completely destroyed.
Without naval suppression and support, the only option is to let the enemies in and then annihilate them through street combat.
Especially the Marine Corps, their daily training involves the most content related to street combat.
