The Land of the Rising Sun Transfers to Another World

Chapter 139: Marching to Owari Part 1

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It has been a while since we have had a new sci-fi weapon.

- ワイアード

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JMSDF Kantō Undersea Missile Base, Near the Japanese Coastline

The events date back to a time before the Lemurian delegation visited Japan. Japan had begun constructing an ultra-large-scale submarine missile base encircling its Exclusive Economic Zone prior to its transference. This ambitious project was made possible by leveraging data from the Arsenal Ocean Project, acquired under the condition of guaranteeing the safety and well-being of the family of a certain prominent American official who happened to be visiting Japan as a tourist.

The first step was to collect detailed data on the seabed topography surrounding Japan, focusing primarily on the EEZ areas.

Using unmanned underwater exploration vehicles and specialized underwater work robots known as SEA WALKERs, Japan collaborated extensively with the Undersea Kingdom of Balfour, enabling smooth data collection of the seabed around its territory. Frankly, without Balfour's cooperation, Japan might still be conducting seabed surveys even now.

Once data on the topography and ocean currents were collected, the construction of the submarine missile base began. This process involved the rapid deployment of unmanned vehicles in what could be described as a manpower-intensive approach. Currently, construction is prioritized around Japan's surrounding waters, with similar bases being built near allied nations with oceanic borders. As of now, 80% of the construction has been completed, and the submarine missile base in the Kantō region is fully operational.

- 40 × RGM-84 anti-ship missile cells

- 40 × SAM-4 surface-to-air missile cells

- 30 × Short-range ballistic missile silos

- 20 × Medium-range ballistic missile silos

- 10 × Intercontinental ballistic missile silos

- 5 × Observation missile cells

- 3 × Amafune unmanned submarines

The base utilizes natural seabed features and undersea mountains as missile cells and silos. Multiple undersea caves lead to the interior of the base, serving as access points for material transport and personnel movement. These hollow spaces function as harbors within the submarine missile base.

Naturally, finding or approaching these locations is exceedingly difficult. The vicinity is patrolled and secured under an alliance treaty by Amafune unmanned submarines, SEA WALKERs, and warriors from the aquatic and merfolk tribes of the Undersea Kingdom of Balfour.

Over 80% of the base's interior is filled with missile cells and silos, leaving limited areas accessible to human personnel. The base is primarily operated and managed by unmanned systems (WALKERs), reducing the cost and time required for full human operation.

For bases operated solely by WALKERs, at least two remotely controlled CHIEF WALKER units are stationed as a minimum requirement. For this submarine missile base, the nearest JMSDF base houses an underground Remote Operations Command Post, where senior officers work in shifts to control and manage operations.

The operation system involves wearing a specialized helmet that links with the CHIEF WALKER terminal, allowing operators to feel as though they are physically present at the site while issuing commands and controlling the units. The helmet features a distinctive design resembling a full-face VR headset. The control terminal can be customized upon approval, offering various configurations such as a keyboard type, a game controller type from a certain manufacturer, or an immersive controller that synchronizes with the user's limb movements via body-mounted devices.