If they soften it up like that, maybe any reason they had for invading in the first place, would be moot. 😁
Not necessarily.
In addition to the two superpowers, France and China are known to have tested neutron or enhanced radiation bombs. France conducted an early test of the technology in 1967[26] and tested an “actual” neutron bomb in 1980.[27] China conducted a successful test of neutron bomb principles in 1984 and a successful test of a neutron bomb in 1988. However, neither of those countries chose to deploy neutron bombs. Chinese nuclear scientists stated before the 1988 test that China had no need for neutron bombs, but it was developed to serve as a “technology reserve”, in case the need arose in the future.[28]
https://en.wikipedia.org/wiki/Neutron_bomb