innovation_qyv_japan_units = {
    group = military
    era = early_medieval

    # Only these cultures may ever see/research this innovation
    potential = {
        OR = {
            culture = culture:japanese
            culture = culture:yamato
            culture = culture:ryukyuan
        }
    }

    # When researched, these units become available to recruit
    unlock_maa = qyv_samurai_hc
    unlock_maa = qyv_ashigaru_pike
    unlock_maa = qyv_sohei_skirm
    unlock_maa = qyv_yumi_archers
}