解(jie)(jie)放戰(zhan)爭時期，中國(guo)人民(min)解(jie)(jie)放軍晉冀魯(lu)豫(yu)野戰(zhan)軍主力南渡(du)黃(huang)河，出(chu)擊外(wai)線，在山東省西(xi)南部地區對國(guo)民(min)黨軍進行(xing)的進攻(gong)作(zuo)戰(zhan)。
1947年3月(yue)，國民(min)黨軍由對解放區(qu)的(de)(de)全(quan)面進(jin)攻(gong)轉(zhuan)為對陜北和(he)(he)山東的(de)(de)重(zhong)點進(jin)攻(gong)，而在這兩(liang)個(ge)(ge)戰(zhan)場(chang)之間的(de)(de)晉冀魯豫(yu)(yu)戰(zhan)場(chang)上(shang)，兵(bing)力(li)有所(suo)削弱，形成兩(liang)頭重(zhong)中間輕(qing)的(de)(de)“啞鈴形”態勢，企圖(tu)利(li)用(yong)黃(huang)(huang)河(he)天險阻止(zhi)人民(min)解放軍南進(jin)。到6月(yue)間，從山東省東阿至河(he)南省開封250千米的(de)(de)黃(huang)(huang)河(he)防線上(shang)，僅有第(di)(di)(di)4“綏靖”區(qu)司(si)令官劉汝明部(bu)(bu)整(zheng)(zheng)(zheng)(zheng)編(bian)第(di)(di)(di)55、第(di)(di)(di)68師和(he)(he)地(di)方保安團隊擔任防守。整(zheng)(zheng)(zheng)(zheng)編(bian)第(di)(di)(di)55師師部(bu)(bu)率第(di)(di)(di)29旅(lv)位于(yu)鄆城、皇姑庵地(di)區(qu)，其第(di)(di)(di)74、第(di)(di)(di)181旅(lv)分(fen)別位于(yu)蕭皮口、鄄城地(di)區(qu)；整(zheng)(zheng)(zheng)(zheng)編(bian)第(di)(di)(di)68師師部(bu)(bu)位于(yu)菏澤(ze)，其第(di)(di)(di)81、第(di)(di)(di)143、第(di)(di)(di)119旅(lv)分(fen)別位于(yu)東明、杜集、畢寨(zhai)地(di)區(qu)。另有整(zheng)(zheng)(zheng)(zheng)編(bian)第(di)(di)(di)70師（2個(ge)(ge)旅(lv)）位于(yu)嘉祥(xiang)地(di)區(qu)機動。晉冀魯豫(yu)(yu)野戰(zhan)軍司(si)令員(yuan)劉伯承、政(zheng)治(zhi)委員(yuan)鄧小(xiao)平在5月(yue)下旬結(jie)束豫(yu)(yu)北攻(gong)勢后(hou)，即根據中共中央關(guan)于(yu)向(xiang)中原出(chu)動、轉(zhuan)入外(wai)線作戰(zhan)的(de)(de)既定(ding)方針，組(zu)織部(bu)(bu)隊休整(zheng)(zheng)(zheng)(zheng)，做好(hao)外(wai)線作戰(zhan)的(de)(de)各項(xiang)準備工作：進(jin)行(xing)政(zheng)治(zhi)動員(yuan)，調(diao)整(zheng)(zheng)(zheng)(zheng)組(zu)織，補充兵(bing)員(yuan)和(he)(he)武器(qi)糧(liang)彈；頒發《敵(di)前渡河(he)戰(zhan)術指(zhi)導》，進(jin)行(xing)戰(zhan)前訓(xun)練；成立渡河(he)指(zhi)揮部(bu)(bu)，對預定(ding)渡河(he)地(di)段的(de)(de)地(di)形、敵(di)情(qing)、水情(qing)作詳細(xi)偵察；修造船只120余(yu)艘，訓(xun)練水手、船工；組(zu)織民(min)兵(bing)、民(min)工5萬余(yu)人支援前線等。
6月(yue)，中(zhong)共中(zhong)央(yang)軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)委指(zhi)示晉(jin)冀魯(lu)豫野(ye)戰(zhan)(zhan)(zhan)軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)主(zhu)力于(yu)月(yue)底強渡(du)(du)(du)(du)(du)黃(huang)河(he)，先(xian)(xian)在(zai)(zai)魯(lu)西南地(di)區(qu)(qu)(qu)(qu)求殲敵軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)，爾后向(xiang)大(da)別(bie)(bie)山(shan)進擊(ji)，在(zai)(zai)鄂(e)豫皖(wan)邊界地(di)區(qu)(qu)(qu)(qu)實施戰(zhan)(zhan)(zhan)略(lve)展開(kai)。劉伯承、鄧小平(ping)根據這一(yi)指(zhi)示和(he)國民黨軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)設防(fang)情況，決心集(ji)(ji)(ji)中(zhong)4個(ge)縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)又2個(ge)獨(du)立旅(lv)(lv)(lv)，從山(shan)東(dong)省陽谷(gu)以東(dong)張秋鎮至菏(he)澤(ze)以北(bei)臨(lin)濮(pu)集(ji)(ji)(ji)150千(qian)米的8個(ge)地(di)段上(shang)突破黃(huang)河(he)防(fang)線，首先(xian)(xian)發起魯(lu)西南戰(zhan)(zhan)(zhan)役，殲滅劉汝明集(ji)(ji)(ji)團，并在(zai)(zai)運動中(zhong)殲滅來援之敵一(yi)部(bu)(bu)，然后向(xiang)大(da)別(bie)(bie)山(shan)挺(ting)進。其(qi)部(bu)(bu)署是：冀魯(lu)豫軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)區(qu)(qu)(qu)(qu)獨(du)立第(di)(di)1旅(lv)(lv)(lv)于(yu)6月(yue)27日(ri)先(xian)(xian)行(xing)秘密渡(du)(du)(du)(du)(du)河(he)，在(zai)(zai)戴廟、蔡家(jia)莊(zhuang)地(di)區(qu)(qu)(qu)(qu)接應第(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)渡(du)(du)(du)(du)(du)河(he)，并配合第(di)(di)1、第(di)(di)2縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)行(xing)動；原在(zai)(zai)黃(huang)河(he)南岸的獨(du)立第(di)(di)2旅(lv)(lv)(lv)在(zai)(zai)舊城集(ji)(ji)(ji)、臨(lin)濮(pu)集(ji)(ji)(ji)地(di)區(qu)(qu)(qu)(qu)接應第(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)渡(du)(du)(du)(du)(du)河(he)，并配合其(qi)作戰(zhan)(zhan)(zhan)；第(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)于(yu)魏家(jia)山(shan)、張堂等渡(du)(du)(du)(du)(du)口(kou)(kou)(kou)渡(du)(du)(du)(du)(du)河(he)，在(zai)(zai)獨(du)立第(di)(di)1旅(lv)(lv)(lv)協同(tong)下，圍殲鄆(yun)城及其(qi)以北(bei)守軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)；第(di)(di)2縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)于(yu)孫口(kou)(kou)(kou)、林樓等渡(du)(du)(du)(du)(du)口(kou)(kou)(kou)渡(du)(du)(du)(du)(du)河(he)，以1個(ge)旅(lv)(lv)(lv)圍殲皇姑(gu)庵守敵，主(zhu)力插至鄆(yun)城以西協同(tong)第(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)作戰(zhan)(zhan)(zhan)；第(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)于(yu)李橋、于(yu)莊(zhuang)等渡(du)(du)(du)(du)(du)口(kou)(kou)(kou)渡(du)(du)(du)(du)(du)河(he)，圍殲鄄(juan)城及其(qi)西北(bei)地(di)區(qu)(qu)(qu)(qu)守軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)；第(di)(di)3縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)為戰(zhan)(zhan)(zhan)役預備隊(dui)(dui)(dui)(dui)(dui)，進至白衣閣附(fu)近(jin)，視情況隨(sui)第(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)或第(di)(di)2縱(zong)(zong)隊(dui)(dui)(dui)(dui)(dui)渡(du)(du)(du)(du)(du)河(he)，擴大(da)戰(zhan)(zhan)(zhan)果。在(zai)(zai)主(zhu)力渡(du)(du)(du)(du)(du)河(he)的前一(yi)天，以太行(xing)軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)區(qu)(qu)(qu)(qu)、冀南軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)區(qu)(qu)(qu)(qu)、冀魯(lu)豫軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)區(qu)(qu)(qu)(qu)部(bu)(bu)隊(dui)(dui)(dui)(dui)(dui)各一(yi)部(bu)(bu)和(he)豫皖(wan)蘇軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)區(qu)(qu)(qu)(qu)部(bu)(bu)隊(dui)(dui)(dui)(dui)(dui)在(zai)(zai)黃(huang)河(he)兩岸分別(bie)(bie)向(xiang)當(dang)面之敵發起攻擊(ji)，迷(mi)惑和(he)牽(qian)制(zhi)敵軍(jun)(jun)(jun)(jun)(jun)(jun)(jun)。
1947年6月(yue)30日(ri)夜，晉(jin)冀(ji)魯(lu)(lu)豫(yu)野戰(zhan)軍(jun)4個(ge)(ge)縱(zong)(zong)隊(dui)(dui)共13個(ge)(ge)旅(lv)(lv)12萬余(yu)人(ren)，以(yi)(yi)突然勇猛的(de)動作(zuo)，一(yi)舉突破國(guo)(guo)民(min)黨軍(jun)的(de)黃河(he)防線，殲敵一(yi)部。劉汝(ru)明急令整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)55師(shi)第(di)(di)(di)(di)74、第(di)(di)(di)(di)29旅(lv)(lv)退(tui)集鄆(yun)(yun)城(cheng)(cheng)，整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)68師(shi)主(zhu)力和(he)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)55師(shi)第(di)(di)(di)(di)181旅(lv)(lv)退(tui)守(shou)菏澤(ze)。第(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)4個(ge)(ge)旅(lv)(lv)在獨(du)立第(di)(di)(di)(di)1旅(lv)(lv)配合下(xia)，當即(ji)包圍(wei)鄆(yun)(yun)城(cheng)(cheng)，并于(yu)7月(yue)2日(ri)攻占該城(cheng)(cheng)四關(guan)。其(qi)(qi)(qi)余(yu)3個(ge)(ge)縱(zong)(zong)隊(dui)(dui)進至鄄(juan)城(cheng)(cheng)、皇姑庵地(di)區(qu)(qu)，待機打援(yuan)。對晉(jin)冀(ji)魯(lu)(lu)豫(yu)野戰(zhan)軍(jun)主(zhu)力渡(du)過黃河(he)，國(guo)(guo)民(min)黨軍(jun)陸軍(jun)總司令兼徐州司令部司令顧祝同甚為震(zhen)驚，慌忙從豫(yu)北(bei)(bei)、豫(yu)皖(wan)蘇(su)邊(bian)界地(di)區(qu)(qu)抽調3個(ge)(ge)整(zheng)編(bian)(bian)(bian)師(shi)又(you)1個(ge)(ge)旅(lv)(lv)，連同整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)70師(shi)組(zu)成第(di)(di)(di)(di)2兵團增援(yuan)魯(lu)(lu)西南。該兵團司令官王敬(jing)久以(yi)(yi)第(di)(di)(di)(di)153旅(lv)(lv)進至定陶(tao)(tao)，與(yu)退(tui)守(shou)菏澤(ze)的(de)部隊(dui)(dui)組(zu)成西路；以(yi)(yi)地(di)方團隊(dui)(dui)防守(shou)曹(cao)縣城(cheng)(cheng)；以(yi)(yi)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)32、第(di)(di)(di)(di)66師(shi)各(ge)2個(ge)(ge)旅(lv)(lv)經金(jin)鄉(xiang)北(bei)(bei)上，會同整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)70師(shi)組(zu)成東路；將整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)58師(shi)及整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)66師(shi)第(di)(di)(di)(di)199旅(lv)(lv)配置在金(jin)鄉(xiang)作(zuo)為后應。企圖(tu)以(yi)(yi)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)55師(shi)堅守(shou)鄆(yun)(yun)城(cheng)(cheng)，吸引晉(jin)冀(ji)魯(lu)(lu)豫(yu)野戰(zhan)軍(jun)主(zhu)力于(yu)城(cheng)(cheng)下(xia)，然后以(yi)(yi)東西兩路援(yuan)軍(jun)向北(bei)(bei)鉗(qian)擊其(qi)(qi)(qi)側(ce)后，迫其(qi)(qi)(qi)背水作(zuo)戰(zhan)。劉伯(bo)承、鄧小平識破了這一(yi)企圖(tu)，立即(ji)采取攻其(qi)(qi)(qi)一(yi)點（鄆(yun)(yun)城(cheng)(cheng)）、吸其(qi)(qi)(qi)來(lai)援(yuan)（金(jin)鄉(xiang)）、啃其(qi)(qi)(qi)一(yi)邊(bian)（定陶(tao)(tao)）、各(ge)個(ge)(ge)擊破的(de)方針(zhen)，以(yi)(yi)第(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)等(deng)部攻取鄆(yun)(yun)城(cheng)(cheng)；以(yi)(yi)第(di)(di)(di)(di)2、第(di)(di)(di)(di)6縱(zong)(zong)隊(dui)(dui)迅速從東西兩路援(yuan)敵之間向南，攻占定陶(tao)(tao)、曹(cao)縣；以(yi)(yi)第(di)(di)(di)(di)3縱(zong)(zong)隊(dui)(dui)進到(dao)定陶(tao)(tao)以(yi)(yi)東待機。7月(yue)8日(ri)晨，第(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)攻克鄆(yun)(yun)城(cheng)(cheng)，全殲整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)55師(shi)師(shi)部及2個(ge)(ge)旅(lv)(lv)。10日(ri)夜，第(di)(di)(di)(di)6縱(zong)(zong)隊(dui)(dui)攻占定陶(tao)(tao)，全殲第(di)(di)(di)(di)153旅(lv)(lv)；第(di)(di)(di)(di)2縱(zong)(zong)隊(dui)(dui)收復曹(cao)縣城(cheng)(cheng)；第(di)(di)(di)(di)3縱(zong)(zong)隊(dui)(dui)到(dao)達定陶(tao)(tao)以(yi)(yi)東地(di)區(qu)(qu)。
7月(yue)10日(ri)，國民黨援軍(jun)東(dong)(dong)(dong)路整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)（1個(ge)半旅(lv)(lv)）、整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32師(shi)(shi)(shi)(shi)(shi)(shi)和第(di)(di)(di)(di)(di)66師(shi)(shi)(shi)(shi)(shi)(shi)主力，分別進(jin)至六(liu)營(ying)集(ji)(ji)、獨(du)山(shan)集(ji)(ji)、羊山(shan)集(ji)(ji)地(di)區(qu)(qu)，由北(bei)向(xiang)(xiang)(xiang)南(nan)擺成一(yi)字(zi)長(chang)蛇陣(zhen)(zhen)。晉冀魯豫野戰(zhan)軍(jun)當(dang)即調(diao)整(zheng)部(bu)(bu)署，轉兵東(dong)(dong)(dong)進(jin)。13日(ri)拂曉，第(di)(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)將位(wei)于六(liu)營(ying)集(ji)(ji)的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)、獨(du)山(shan)集(ji)(ji)的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32師(shi)(shi)(shi)(shi)(shi)(shi)隔開(kai)，并(bing)切斷(duan)其(qi)與(yu)羊山(shan)集(ji)(ji)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)66師(shi)(shi)(shi)(shi)(shi)(shi)的(de)聯系。當(dang)日(ri)中午，第(di)(di)(di)(di)(di)2縱(zong)(zong)隊(dui)(dui)(dui)在(zai)(zai)謝(xie)集(ji)(ji)殲國民黨軍(jun)1個(ge)團(tuan)，隨即向(xiang)(xiang)(xiang)東(dong)(dong)(dong)協同第(di)(di)(di)(di)(di)3縱(zong)(zong)隊(dui)(dui)(dui)包圍(wei)(wei)羊山(shan)集(ji)(ji)。王敬久發覺所部(bu)(bu)被分割后舉棋不定，先令(ling)北(bei)邊(bian)的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)和南(nan)邊(bian)的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)66師(shi)(shi)(shi)(shi)(shi)(shi)向(xiang)(xiang)(xiang)中間的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32師(shi)(shi)(shi)(shi)(shi)(shi)靠(kao)攏(long)；復令(ling)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32師(shi)(shi)(shi)(shi)(shi)(shi)向(xiang)(xiang)(xiang)北(bei)接應整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)，再(zai)向(xiang)(xiang)(xiang)南(nan)靠(kao)攏(long)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)66師(shi)(shi)(shi)(shi)(shi)(shi)。整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32師(shi)(shi)(shi)(shi)(shi)(shi)在(zai)(zai)第(di)(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)追擊下，師(shi)(shi)(shi)(shi)(shi)(shi)部(bu)(bu)率(lv)1個(ge)旅(lv)(lv)逃入六(liu)營(ying)集(ji)(ji)與(yu)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)會合，其(qi)第(di)(di)(di)(di)(di)139旅(lv)(lv)則(ze)被第(di)(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)和第(di)(di)(di)(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)一(yi)部(bu)(bu)追殲于逃往嘉(jia)祥(xiang)(xiang)的(de)途(tu)中，防(fang)守嘉(jia)祥(xiang)(xiang)城的(de)整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)一(yi)部(bu)(bu)也被迫(po)向(xiang)(xiang)(xiang)濟(ji)寧撤逃。與(yu)此同時，第(di)(di)(di)(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)主力緊(jin)縮(suo)對(dui)六(liu)營(ying)集(ji)(ji)的(de)包圍(wei)(wei)圈。劉(liu)伯承、鄧(deng)小平考慮(lv)，六(liu)營(ying)集(ji)(ji)為(wei)僅有200戶人(ren)家的(de)村莊(zhuang)，糧食飲水奇缺(que)，敵軍(jun)2個(ge)整(zheng)編(bian)(bian)(bian)師(shi)(shi)(shi)(shi)(shi)(shi)師(shi)(shi)(shi)(shi)(shi)(shi)部(bu)(bu)和2個(ge)半旅(lv)(lv)擠在(zai)(zai)這一(yi)狹小地(di)區(qu)(qu)內，若(ruo)對(dui)其(qi)四面圍(wei)(wei)攻，敵必作(zuo)“困獸之斗”。因此采取“圍(wei)(wei)三(san)闕(que)一(yi)”部(bu)(bu)署，以(yi)(yi)第(di)(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)在(zai)(zai)六(liu)營(ying)集(ji)(ji)以(yi)(yi)東(dong)(dong)(dong)布(bu)成袋(dai)形(xing)陣(zhen)(zhen)地(di)，以(yi)(yi)第(di)(di)(di)(di)(di)6縱(zong)(zong)隊(dui)(dui)(dui)于14日(ri)20時由西(xi)向(xiang)(xiang)(xiang)東(dong)(dong)(dong)對(dui)六(liu)營(ying)集(ji)(ji)發起猛(meng)攻。整(zheng)編(bian)(bian)(bian)第(di)(di)(di)(di)(di)32、第(di)(di)(di)(di)(di)70師(shi)(shi)(shi)(shi)(shi)(shi)向(xiang)(xiang)(xiang)東(dong)(dong)(dong)突圍(wei)(wei)，被第(di)(di)(di)(di)(di)1縱(zong)(zong)隊(dui)(dui)(dui)全殲。
7月(yue)15日(ri)，第(di)2、第(di)3縱隊對羊(yang)山(shan)集(ji)(ji)發起攻(gong)擊，但因(yin)該處守軍(jun)以(yi)羊(yang)山(shan)作(zuo)依托，南側(ce)地形低洼(wa)、積(ji)水較(jiao)多，雖經(jing)兩天(tian)激戰(zhan)，進(jin)展不(bu)大。此時，蔣介(jie)石得知整編(bian)(bian)第(di)32師等部(bu)連續被殲(jian)和(he)羊(yang)山(shan)集(ji)(ji)整編(bian)(bian)第(di)66師告急等情況(kuang)，于19日(ri)飛抵開封坐(zuo)鎮(zhen)指揮，從西安、洛陽、豫北、山(shan)東、漢口(kou)等地抽調7個(ge)(ge)整編(bian)(bian)師又2個(ge)(ge)旅(lv)向魯西南馳援(yuan)(yuan)。20日(ri)又令王敬久(jiu)率(lv)整編(bian)(bian)第(di)58師和(he)第(di)199旅(lv)，在飛機、坦克(ke)掩護下由金鄉北上，以(yi)解羊(yang)山(shan)集(ji)(ji)之(zhi)圍。劉伯承、鄧(deng)小(xiao)平為爭取(qu)先機之(zhi)利，以(yi)獨立(li)第(di)1、第(di)2旅(lv)進(jin)至(zhi)萬(wan)福河阻援(yuan)(yuan)，將第(di)199旅(lv)和(he)由羊(yang)山(shan)集(ji)(ji)出(chu)來接(jie)應的1個(ge)(ge)團全殲(jian)。接(jie)著，集(ji)(ji)中第(di)2、第(di)3、第(di)6縱隊于27日(ri)對羊(yang)山(shan)集(ji)(ji)發起總(zong)攻(gong)，戰(zhan)至(zhi)28日(ri)晚，全殲(jian)整編(bian)(bian)第(di)66師師部(bu)及(ji)2個(ge)(ge)旅(lv)。
魯西南戰(zhan)(zhan)(zhan)役，晉冀(ji)魯豫野(ye)(ye)戰(zhan)(zhan)(zhan)軍(jun)采取(qu)南北(bei)牽制，寬(kuan)正(zheng)面(mian)、多地段的突然強渡黃河，積(ji)極創(chuang)造與捕(bu)捉戰(zhan)(zhan)(zhan)機，調動敵軍(jun)就范，把攻城與野(ye)(ye)戰(zhan)(zhan)(zhan)、分(fen)割與圍(wei)殲相(xiang)結合，創(chuang)造了以15個旅的兵(bing)力(li)殲敵4個整編(bian)師共9個半(ban)旅約6萬人的戰(zhan)(zhan)(zhan)績，從而(er)打亂了國民(min)黨(dang)軍(jun)在南部(bu)戰(zhan)(zhan)(zhan)線的戰(zhan)(zhan)(zhan)略部(bu)署(shu)，開辟(pi)了進軍(jun)大別山的道路，揭開了人民(min)解放軍(jun)戰(zhan)(zhan)(zhan)略進攻的序幕。
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