From the Independent Sentinel:

A large military convoy moved into northern Syria this week.

The report said the U.S. military convoy consisted of a large amount of weapons and logistical equipment, which were transferred to their bases inside the Al-Hasakah and Deir Ezzor Governorates east of the Euphrates River.

This is happening at the same time that Russia is making moves in the region. From AMN:

 The Russian Armed Forces sent more reinforcements and heavy military equipment to the Al-Qamishli Airport this week, as they strengthen their presence east of the Euphrates River.

According to the latest reports from the Al-Hasakah Governorate, the Russian Armed Forces deployed more troops to the frontlines with the Turkish military and their allied militants near the key town of Tal Tamr.

A lot of muscle is being flexed here, most likely because of the change in leadership in Washington.