1934-1945年，侵華日(ri)(ri)軍(jun)(jun)(jun)歷時十余年，在東起(qi)吉(ji)林省琿春(chun)，中(zhong)(zhong)部經黑龍江省中(zhong)(zhong)蘇邊(bian)境，西至內蒙(meng)古海拉爾（今呼(hu)倫貝(bei)爾）和(he)阿爾山5000公(gong)(gong)里(li)的邊(bian)境地(di)(di)帶，共(gong)修筑17處(chu)要塞(sai)(sai)(sai)，要塞(sai)(sai)(sai)群共(gong)約1700公(gong)(gong)里(li)，共(gong)有(you)(you)8萬(wan)個永備工(gong)(gong)(gong)事。 此(ci)外(wai)，還(huan)包括數以千計的永久性地(di)(di)下倉庫、電(dian)站、通信樞紐部、給水站等附屬軍(jun)(jun)(jun)事設(she)施(shi)和(he)大量(liang)二(er)、三線一般(ban)陣地(di)(di)和(he)野戰陣地(di)(di)及軍(jun)(jun)(jun)用機(ji)(ji)場、軍(jun)(jun)(jun)用鐵路和(he)公(gong)(gong)路，工(gong)(gong)(gong)程巨大。日(ri)(ri)本要塞(sai)(sai)(sai)所有(you)(you)筑壘都構筑有(you)(you)鋼(gang)筋(jin)混凝土(tu)工(gong)(gong)(gong)事、永備火力(li)點，有(you)(you)鋼(gang)帽堡、裝甲觀察(cha)哨及土(tu)木質火力(li)點，有(you)(you)步(bu)兵(bing)(bing)掩體、機(ji)(ji)動戰壕(hao)、反坦克(ke)壕(hao)、連環(huan)鐵絲網和(he)防步(bu)兵(bing)(bing)地(di)(di)雷區(qu)，有(you)(you)彈藥(yao)庫、糧秣(mo)庫、發電(dian)站、給排(pai)水系統和(he)浴室(shi)等，有(you)(you)以班、排(pai)為單位(wei)的兵(bing)(bing)室(shi)、會議室(shi)、醫務室(shi)、廚房、電(dian)話機(ji)(ji)房和(he)軍(jun)(jun)(jun)官指揮所，有(you)(you)電(dian)動鋼(gang)軌運輸車和(he)專用通道、豎(shu)井、通風口等。為防備飛機(ji)(ji)轟炸和(he)大口徑重(zhong)炮(pao)轟擊，地(di)(di)下要塞(sai)(sai)(sai)都是從堅(jian)硬的巖石山體中(zhong)(zhong)部或底部開(kai)掘，洞(dong)口頂部和(he)四周(zhou)還(huan)澆(jiao)筑混凝土(tu)，一般(ban)厚1-2米。在完全(quan)保密條(tiao)件(jian)下設(she)計施(shi)工(gong)(gong)(gong)，并強征(zheng)中(zhong)(zhong)國勞(lao)工(gong)(gong)(gong)320多萬(wan)人，造成100多萬(wan)勞(lao)工(gong)(gong)(gong)死(si)亡(wang)。
我心明亮 
