He fought on the Republican side against Francisco Franco in the Spanish Civil War.

Entity and relation annotations:
id: 0
type: entity
value: text: the Republican
labels: <Organization>
id: 1
type: entity
value: text: Francisco Franco
labels: <Person>
id: 2
type: entity
value: text: the Spanish Civil Wa
labels: <Event>
type: relation
to_id: 2
labels: Person:participates_in:Event
from_id: 1
type: relation
to_id: 2
labels: Organization:Engagement:Event
from_id: 0