STOCKHOLM (AP) — The trial of a former Syrian army general over his alleged role in war crimes committed in 2012 in his home country started at a Stockholm court Monday, a first according to a human rights organization.

Syria has been ravaged by civil war for over 13 years.

Brig. Gen Mohammed Hamo, who is currently residing in Sweden, is charged with aiding and abetting crimes violating international law, described by the prosecution as “a serious crime” when he was charged in February.

The Associated Press got a hold of Hamo’s accusation sheet in which the prosecutor claims the 65-year-old — who was a brigadier general in the Syrian army between January 2012 and July 2012 — has participated in the warfare that “systematically included attacks carried out in violation of the principle of distinction, caution and proportionality,” adding that the attacks were “indiscriminate.”