Complex sentence: SUMKA was the Extreme Right Wing, Iranian Ultra Nationalist Party of Iran.In many occasions they went head to head with leftists and they definitely had a beef with the communist party (Hezbe Tudeh).
Split into simpler sentences: SUMKA was the Extreme Right Wing, Iranian Ultra Nationalist Party of Iran. On many occasions they went head to head with leftists and they definitely had a beef with the communist party (Hezbe Tudeh).