The system where soldiers were garrisoned at strategic posts in Kyushu was replaced with the 'kondei' system of military service for the purpose of lightening the burden on the people, and only peasants from northern Kyushu were conscripted.
また、防人制も人民負担の軽減から健児制に取って代わられ、農民徴用も九州地方出身者のみに限定している。