| 1944 |
3 January
| RAdm Turner issues OP Plan A6-43, listing components and setting forth mission of Joint Expeditionary Force. |
4 January
| 1st Amphibious Brigade (Japanese) arrives at Eniwetok Atoll. |
5 January
| VAC OP Plan 1-44 released, superseding OP Plan 3-43. |
13 January
| Main body of TF 53 departs San Diego. |
22 January
| Joint Expeditionary Force sails from Hawaii. |
31 January
| D-Day in the Marshalls: Landings effected on small islands in both northern and southern Kwajalein Atoll. VAC Reconn Co lands on Majuro Atoll. |
1 February
| Combat Teams 21 and 24 land on Roi-Namur. RCT's 32 and 184 land on Kwajalein Island. |
4 February
| RAdm Harry W. Hill given command of Task Group 51.11, with the mission of seizing Eniwetok Atoll. Kwajalein Island overrun. 109th NavConsBn begins repair on Roi airfield. |
7 February
| Ground elements of 4th MBDAW arrive at Roi. |
8 February
| Kwajalein Atoll secured. |
12 February
| Japanese retaliate with air attack on Roi. |
17 February
| Landings effected on small islands of Eniwetok Atoll. |
17-18 February
| TF 58 attacks Truk. |
18 February
| 22d Marines land on Engebi and secure it. |
19 February
| Landing by 106th RCT and 3d Bn, 22d Marines, on Eniwetok Island. |
21 February
| Eniwetok Island secured. |
22 February
| 22d Marines land on Parry and secure it. |
26 February
| 22d Marines relieve 25th Marines on Kwajalein. |
1 March
| RAdm Bernhard receives orders to neutralize and control the Lesser Marshalls. |
4 March
| 4th MBDAW begins bombing campaign against Wotje, Jaluit, Mille and Maloelap. |
10 March
| Wotho Island taken. |
11 March
| Ujae Atoll occupied. American flag raised on Lib Island. |
21 March
| Ailinglapalap Atoll taken. |
22 March
| TG-1 disbanded; 1st ProvMarBrig organized. |
24 March
| Ebon Atoll secured. |
30 March
| Flag raised on Bikini Atoll. |
1 April
| Ailuk Atoll taken. |
2 April
| Marines land on Mejit Island. |
3 April
| Likiep and Rongelap Atolls secured. |
5 April
| Utirik Atoll secured. |
6 April
| 22d Marines depart for Guadalcanal. |
17 April
| Marines from 1st Defense Bn, VAC, land on Erikub and Aur Atolls. |
22 April
| Soldiers of 111th Inf raise flag on Ujelang Atoll. |
| 1945 |
22 August
| Mille Atoll surrendered to American naval forces: the first of the bypassed atolls to surrender. |
2 September
| Japan formally surrenders. |