| Conflict: | Gulf of Sidra Offensive (2018) |
| Date: | 11–21 June 2018 |
| Place: | Ras Lanuf and Sidra |
| Territory: | Ras Lanuf and Sidra are recaptured by the Tobruk government. |
| Result: | LNA victory |
| Combatant1: |  Benghazi Defense Brigades[1] Supported by:
|
| Combatant2: | House of Representatives
|
| Commander1: | Ibrahim Jadhran |
| Commander2: | Khalifa Haftar |
| Strength1: | Less than 1,000[3] |
| Strength2: | unknown |
| Casualties1: | unknown |
| Casualties2: | 15 killed 25 wounded |
The Gulf of Sidra Offensive was an offensive of the Second Libyan Civil War. It was launched by the Benghazi Defense Brigades on 11 June 2018,[1] and was fought concurrently with the Battle of Derna. On the first day, The Benghazi Defense Brigades captured Ras Lanuf and Sidra, before the Libyan National Army started a counteroffensive on 17 June.[4] On 21 June, The LNA captured Ras Lanuf and Al Sidra.[5] Hours later, The Benghazi Defense Brigades claimed to capture these cities once again,[6] [7] but the LNA denied these claims, releasing pictures showing their soldiers within Sidra and Ras Lanuf.[8]