Last September, the young men, 23 and 18 years old, were arrested at the Syrian border with Turkey for allegedly planning to join al-Nusra Front in Syria, the Dutch broadcaster Omroep Gelderland reported.
The two men were sentenced to three and two years in prison respectively.
One of the suspects said the goal of the attempted journey to Syria was to help someone leave the country, according to the broadcaster.
Al-Nusra Front is a terrorist extremist organization operating mainly in Syria and notorious for spreading its radical Islamic views and recruiting members from overseas. It is banned in Russia and some other countries.