 Complete the following phrase:  The 41st moved from Hawaii and on 17 December arrived at Tarawa. Before the Group could mount its own offensive however, the rubble caused by the recent fighting had to be cleared away and the airstrips repaired. The uncomfortable climate, the temporary delay, and an outbreak of dengue fever and dysentery combined to make life miserable for the men of the 41st. Frequent Japanese nuisance raids added to the sense of helpless frustration. On 28 December, the 820th Squadron launched the Groups combat mission with an attack on the new enemy air facilities at Mili Atoll in the Marshall Islands. During the month of January 1944 the Group conducted 215 sorties against the Japanese positions in the Marshalls. Maloelap, Wotje, Mili, and Jaluit became familiar to the crews of the B-25s. Those islands contained air facilities from which the Japanese might interfere with the scheduled invasions of 