Expeditionary Strike Group 1

Expeditionary Strike Group 1 (ESG-1) is a forward-deployed naval presence of the UNSC Navy currently centered around its flagship,. ESG-1 has conducted operations against Jul 'Mdama's Covenant in-support of Unified Earth Government and Swords of Sanghelios objectives pursuant to the Treaty of 2552. The strike group is currently engaging in active operations countering the emerging Created and their Guardian-Promethean forces.

Current (10/2558)

 * (INF-101) — Flagship; CAPT Thomas Lasky
 * Infinity Spartan Forces — CDR Sarah Palmer

2/2558

 * UNSC Infinity (INF-101) — Flagship; CAPT Thomas Lasky
 * Infinity Spartan Forces — CDR Sarah Palmer
 * Infinity Science — Dr. Henry Glassman
 * Infinity carrier air wing
 * Embarked Marine forces
 * Embarked reinforced frigate squadron
 * 10 s
 * Infinity Sub-Vessel 3
 * Battleship division
 * 3 s
 * Reinforced cruiser squadron
 * 10 s

List of appearances

 * Halo 4
 * ''Spartan Ops
 * Halo: Escalation
 * Halo 5: Guardians