Folklore and experimental archeological group Trejasmens was founded in Ropaži, Latvia on September 21, 2000. That was the anniversary of Saules Battle (The Sun Battle). The group obtained the status of a society in 2003. As the basis of our activities we can define the research and reconstruction of the armament , lifestyle and mental values of warriors from the Latvian history of the Late Iron Age. It includes the imitation of archeological clothes of the mentioned period. Each member of Trejasmens has its own set of clothes connected with the deffinite century and territory. The groups sing ancient warrior songs, although such folk songs which could be dated to the researched period are very few; therefore we sing the songs of recruits, Latvian riflemen and legionnaires as well. As the greatest part of the group members come from Ropaži vicinity which is an ancient Livonian territory, we have the Livonian songs, annual tradition songs and mythological songs in our repertory. Besides we perform ancient warrior games and dances, as well as we show ancient rituals. We have taken part in many medieval festivals in all Baltic states performing songs, games, and ancients fights, but the most important folklore events are the following: Baltica-2003 and 2006, Baltijas Saule starting from 2002, Pulka eimu, pulka teku, at the same time we have performed in many schools, clubs and on open-air stages throughout Latvia.