天津人民在共產(chǎn)黨的領(lǐng)導(dǎo)下，經(jīng)過8年艱苦卓絕的斗爭，終于迎來了抗日戰(zhàn)爭的勝利。1945年8月14日，日本向美、英、法、中4國，通告了無條件投降； 日本天皇裕仁，并錄制了投降的廣播“詔書” 。
1945年8月15日，日本天皇裕仁以廣播“停戰(zhàn)詔書” 的形式，宣布無條件投降。9月2日，日本天皇和政府代表，以及日本大本營代表，在投降書上簽字。至此，抗日戰(zhàn)爭勝利結(jié)束。
日本無條件投降，偽政權(quán)也隨之垮臺。由于在西南重慶的國民黨政府對抗日勝利毫無準(zhǔn)備，不能立即派出人員到淪陷區(qū)摘桃子、組建政權(quán)機(jī)構(gòu)，天津陷于無政府狀態(tài)。國民黨政府為了搶占地盤和阻止八路軍受降，于1945年8月中旬和9月下旬，先后任命張廷諤、杜建時(shí)為天津市正、副市長。10月2日，張廷諤、杜建時(shí)才率領(lǐng)一批職員來到天津。
杜建時(shí)根據(jù)蔣介石的召見、受命，招收和改編原偽滿、華北的偽軍為華北先遣軍，并將其第一軍派來天津“維持治安” ; 接應(yīng)在天津登陸的美國海軍陸戰(zhàn)隊(duì)；打通天津到沈陽的鐵路； 守住塘沽、秦皇島、葫蘆島等港口，以及平、津飛機(jī)場；所謂清北寧(鐵路)線區(qū)內(nèi)的八路軍。
1945年9月30日，美國海軍陸戰(zhàn)隊(duì)第三軍團(tuán)司令駱基中將，率兵18000人在塘沽登陸； 10月1日，美軍4000人進(jìn)入天津。國民黨政府九十四軍也抵達(dá)天津。
1945年10月6日上午9時(shí)，侵略天津的日軍的投降儀式，在原法租界公議局大樓(今承德道文化局)前舉行。美國海軍陸戰(zhàn)隊(duì)第三軍團(tuán)司令駱基中將，代表國民黨政府受降； 日本司令官內(nèi)田銀之助，簽署了投降書。前來觀看的群眾達(dá)2萬多人。

·1945年10月6日上午9時(shí)，在法公議局前(今文化局)舉行
日軍投降簽字儀式。

抗戰(zhàn)勝利后，天津人民剛剛張開笑臉，又被國民黨的統(tǒng)治投入了暗無天日的深淵。1946年10月，杜建時(shí)被提升為天津市長時(shí)，蔣介石又一次召見了他，要他上任后“首要是配合軍事維持治安”等。按照蔣介石的指令，他配合反共的軍事活動，開展各項(xiàng)工作。接收敵偽財(cái)產(chǎn)，收編偽軍，接應(yīng)國民黨軍隊(duì)，構(gòu)筑城防工事，推行“戡亂建國”政策，建立形形色色的反共防共組織，大搞反共活動，對解放區(qū)進(jìn)行經(jīng)濟(jì)封鎖，縱火燒房制造無人區(qū)，進(jìn)行“大清查，大搜捕” ,鎮(zhèn)壓人民爭取和平、民主的革命斗爭。
天津人民具有光榮的革命傳統(tǒng)。日本投降后，在共產(chǎn)黨的領(lǐng)導(dǎo)下，為了爭取自由民主，掀起了多次斗爭。終于迎來了天津解放。
After eight years of fighting,Tianjin people underthe leadership of CPC,finally greeted the success ofthe anti-Japanese War. On August 14,1945,Japanannounced its surrender at discretion to America,UK,France and China. On August 15,Japanese Mikadobroadcasted his rescript of surrender. On September 2,Mikado and the representatives of government and armysigned on the capitulation,which represented the end ofthe anti-Japanese war.
The puppet regime dissolved after the surrender ofJapan. The Kuomintang government did not fully preparedfor the success and could not send troops to the areasoccupied by the enemies. Tianjin was in a state of anarchy.The Kuomintang government desired to control Tianjin andprevent the PLA from taking over Tianjin. In the middleof August of 1945,it appointed Zhang Ting`e as TianjinMayor.At the end of September,it appointed Du Jianshi asDeputy Mayor of Tianjin. On October 2,Zhang Ting`e andDu Jianshi led his subordinates to Tianjin.
Du Jianshi obeyed Chiang Kai-shek`s order toadapt the army of Manchukuo as the pioneer force tonorth China. He also sent the first army to Tianjin for"public security",cooperated with American Marinecorps,controlled the railway from Tianjin to Shenyang,the harbors of Tanggu,Qinhuangdao and Huludao,andthe airports of Beijing and Tianjin,and drove the PLA inthe area circled by Beining railway line.
On September 30,1945,the lieutenant generaland commander of the third army of American marinecorps,led his 18,000 soldiers and landed on Tanggu. OnOctober 1,4000 American soldiers and the 94th army ofKuomintang entered Tianjin.
At nine,October 6,1945,the surrender ceremonyof the Japanese army in Tianjin was held at the officebuilding of the ex-French-concession (now the site of theCulture Bureau at Chengde Road). the lieutenant generaland commander of the third army of American marinecorps,representing the Kumintang government and theJapanese Commander signed the capitulation. About20,000 people watched the signing.
Happiness of Tianjin people after the war did notlast long because of the Kuomintang`s rule. In October1946,Du Jianshi was promoted to Tianjin Mayor.Chiang Kai-shek met and ordered him to "maintainpublic security and cooperate with the army". Du Jianshiconfiscated the property of Japan and its Manchukuo,adapted the force of the Manchukuo,built defensework,set up anti-Communism organizations,carriedout economic blockage of liberated areas,fired civilianhouses,and arrested the people fighting for peace anddemocracy.
Tianjin people had glorious tradition of revolution.They liberated Tianjin finally under the leadership ofCPC after the surrender of Japan.