163428
The Swiss Grenadiers are an infantry corps of the Swiss Army specialised in rapid offensive operations , intel gathering and operations in urban areas , open fields and other difficult terrains , capable of acting on short notice .
 Swiss, Swiss Army
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Swiss, Swiss Army