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The Battle of Cisterna took place during World War II, on 30 January-2 February 1944, near Cisterna, Italy, as part of the Battle of Anzio that followed Operation ''Shingle''. The battle was a clear German victory which also had repercussions on the employment of U.S. Army Rangers that went beyond the immediate tactical and strategic results of the battle. During this battle, the 1st, 3rd, and 4th U.S. Army Ranger battalions, the 83rd Chemical Mortar Battalion, and the 509th Parachute Infantry Battalion, which had been brigaded as the 6615th Ranger Force (Provisional), were assigned to support the renewal of an attack by the 3rd Infantry Division, which had previously failed to take Cisterna from 25–27 January. The 3rd Division's attack was part of a large offensive by the U.S. VI Corps to break out of the Anzio beachhead before German reinforcements could arrive and concentrate for a counterattack. ==Background== On 22 January 1944, the Allies launched Operation Shingle, the amphibious landing by the U.S. and British divisions of U.S. VI Corps in the area of Anzio and Nettuno. This was designed to unhinge the formidable German Gustav Line defenses some to the southeast which had been under attack from the south by the other three corps (one British, one French and one U.S.) of Mark Clark's United States Fifth Army since 16 January in the first Battle of Monte Cassino. Following the landings, which had been virtually unopposed, John P. Lucas—the VI Corps commander—had chosen a cautious strategy of consolidating the beachhead and building up his force strength, which also allowed time for the Germans to reinforce their defensive positions. By 29 January, there were 69,000 men in the beachhead but the Germans had also had time to react and move 71,500 troops to face them.〔Lloyd Clark (2006), pp. 134 & 136〕 On 30 January, Lucas launched a two-pronged attack. The main attack, by British 1st Infantry Division, was to advance northeast up the Via Anziate toward Campoleone and the Alban Hills. In a secondary simultaneous attack, a Ranger force was to infiltrate Cisterna and clear the Conca - Cisterna road during the night preparatory to an attack in the morning by 15th Infantry Regiment on the town and supporting attacks by 504th Parachute Infantry Regiment on their right and 7th Infantry Regiment on their left. 7th Infantry was to cut Route 7, the main supply line to the German Tenth Army on the Gustav Line, at Cassino. However the plan had been based on the misinterpretation of reconnaissance intelligence, which concluded the main line of German resistance was behind Cisterna. However the Wehrmacht had designated Cisterna as an assembly area for its reserve divisions and had begun moving units into the area. Although a Polish conscript in the German Army had deserted to the U.S. lines immediately before the attack, warning of the buildup, the message was not relayed promptly and the attack proceeded as planned. The Rangers, who expected to encounter a line of thinly-held outposts advanced unknowingly towards a large enemy force.〔King (1985) Ch. 4〕 Contrary to their designated function as an elite raiding force, the Rangers had been involved in much of the front line fighting around the Anzio beachhead. Ranger casualties meant many replacements were recruits who lacked the experience and quality of training of the original members. The growing presence of green troops in an otherwise skilled force degraded its ability to conduct successful infiltration and night operations. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Battle of Cisterna」の詳細全文を読む スポンサード リンク
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