diplomatic_decisions = {
"校长吞并西北三马" = {
potential = {
ai = no
tag = CHI
not = { has_country_flag = labertion_war}
}
allow = {
}
effect = {
set_country_flag = CHI
CXB = { CHI = { split_troops = 1 } }
}
ai_will_do = {
factor = 0
}
}
}

太好了，经过一番胡乱改造后，成功了

diplomatic_decisions = {
"抗日民族统一战线" = {
potential = {
tag = CHI
not = { has_country_flag = CHI }
ai = no
}
allow = {
}
effect = {
set_country_flag = CHI
inherit = CGX
load_oob = "CGX_1936.txt"
inherit = CYN
load_oob = "CYN_1936.txt"
inherit = CXB
load_oob = "CXB_1936.txt"
inherit = CSX
load_oob = "CSX_1936.txt"
inherit = SIK
load_oob = "SIK_1936.txt"
inherit = TIB
load_oob = "TIB_1936.txt"
}
ai_will_do = {
factor = 1
}
}
}