The operational history behind the Espada Squadron is unknown, but it is known that Marcela Vasquez held a relationship with her commander, Alberto Lopez. In October of 1995, Lopez defected to A World With No Boundaries movement that rose in central Osea after the Belkan War, abandoning their base in Sapin and disappearing without a trace.  They were not the only soldiers from Sapin to join the group, as Air Force commander Ramos Gonzales and his Suerte Squadron followed suit. 
On 25 December of 1995, the squadron accompanied the XB-0 Hresvelgr during the bombing of Lumen in the coup d'etat, along with other rebel pilots from the movement, and carried out airstrikes on Valais Air Base later that day. Galm Team pursued the XB-0 to the Waldreich Mountains, where it clashed with Espada. Vasquez and Lopez were shot down, and the squadron was disbanded.
- The word espada is Spanish for sword. In Spanish bullfighting, matadors will use a sword to deliver the killing blow to the bull, and the Espada Team's emblem features a bull impaled by several swords.
- In the reveal trailer, Espada was supposed to only use the J35J Draken.
- Espada squadron´s logo makes a brief appearance in the briefing screen set before Operation Eternal Liberation in Ace Combat Infinity, as one of the squadrons being part of Task Force 118.