Complex sentence: Ukrainian Scouts took part in the World Jamboree at Arrowe Park in 1929, and as part of the Czechoslovak contingent in the fourth World Jamboree at Gödöllő in 1933, attempting to make the World Scouting aware of the suppression of free Scout activities in Ukraine.
Split into simpler sentences: Ukrainian Scouts took part in the World Jamboree at Arrowe Park in 1929. As part of the Czechoslovak contingent in the fourth World Jamboree at Gödöllő in 1933, attempting to make the World Scouting aware of the suppression of free Scout activities in Ukraine.