2790
World War and post-war years After having returned to Palestine at the outbreak of World War II for several months he joined the Trans-Jordan Frontier Force in 1940 .
 organization: Palestine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Palestine