The reasoning is quite simple. After the end of the Second Global War, the Newland Republic retreated to the Gu Continent, and for decades since, it has focused on development. Even when it needed to teach a lesson to those disobedient small countries, there was no need for a large-scale war; the Marine Corps under the command of the Grey Palace was sufficient.
Crucially, the Newland Army had long since deteriorated into a "coastal defense" force.
For decades, the Army's number one mission has been to prevent enemy landings on the homeland and key areas of the Gu Continent, to guard strategic points like the Wangxi Canal.
In terms of equipment development, it has shown outstanding performance.
