242739
During the Spanish Civil War , the pass was the site of a decisive battle between Republican forces ( trying to hold the pass ) and Italian forces ( trying to dislodge them ) , part of the Battle of Santander .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None