defence industry policy committee国防工业政策委员会
Defence Procurement Policy国防采购政策
the defence policy防卫政策
severe air defence policy严格防空政策
japanese defence policy日本防卫政策
border defence policy边防政策
national defence policy detail国防政策
Common defence policy共同防御政策
The defence policy of Dong Han Dynasty had relation with the politics . the economy , the military system and the idea concept.
东汉的边防政策与当时的政治、经济、军事制度以及人们的思想观念密切相关。
参考来源 - 东汉的边防政策