The Russian Foreign Minister, Sergei Lavrov, condemned the United States’ latest deployment of 250 soldiers to northern Syria, stating that this is a clear violation of Syria’s sovereignty.

Lavrov has repeatedly stressed to the U.S. that they must remain actively work with the Syrian people to defeat terrorism; however, Washington has a different opinion regarding the armed groups.

With help from the People’s Protection Units (YPG), some 150 U.S. Marines reportedly entered the Syrian province of Al-Hasakah on Thursday in order to begin their anti-ISIS operations