Syria’s eastern Badia, or desert, remains the country’s last significant hot spot of IS activity. Credit: Russian Federation.

Russia’s foray into Syria took yet another heavy toll this week, when that nation’s Defense Ministry confirmed that a major general was killed in Syria by an improvised explosive device, Al-Monitor online reported.

Major General Vyacheslav Gladkikh died after a roadside IED detonated under a convoy of Russian soldiers and Syrian pro-regime militiamen near the city of Deir ez-Zor.

Three other Russian military personnel were wounded, Russia’s state-run Tass news agency reported. A local commander of Syria’s National Defense Forces, a pro-Assad militia, was also reportedly killed.

“They’ve changed their tactics there,” said one source, who declined to be named for security reasons. “They do nighttime infiltrations, lay mines and booby traps.”

Video purporting to show the explosion circulated on social media this week. It was the first reported death of a Russian general in Syria since 2017, when a lieutenant general was killed in the same province, reportedly by mortar fire from the Islamic State, Al-Monitor reported.

Deir ez-Zor and nearly all of Syrian territory west of the Euphrates River lie in Syrian government hands, with the major exception of Idlib province, the last rebel enclave in the country’s nearly decadelong civil war.

US-backed and Kurdish-led militias captured IS’ last remaining territory in March 2019, but the desert countryside south and east of Deir ez-Zor on the regime’s side of the Euphrates is rife with insurgents who continue to ambush pro-Syrian regime forces, Al-Monitor reported.

Russian Major General Vyacheslav Gladkikh was killed in an IED explosion near the At-Taym oil field south of Deir Ez-Zor. Credit: Handout.

Syria’s eastern Badia, or desert, remains the country’s last significant hot spot of IS activity. In April, more than two dozen Syrian pro-regime fighters were killed in IS attacks in Badia al-Sukhnah and Badia al-Sham, prompting Russian airstrikes, according to the Syrian Observatory for Human Rights.

Killings of local tribal figures recently rocked the east side of the Euphrates in Deir ez-Zor, which is controlled by the Kurdish-led Syrian Democratic Forces, Al-Monitor reported. It is not clear who carried out the slayings, though locals have alternatively blamed IS and the Assad regime.

A US official told Al-Monitor last month that there could be anywhere from 2,000 to 10,000 IS insurgents in sleeper cells across Iraq and Syria.

Coalition spokesman US Army Col. Myles Caggins III told Al-Monitor that the US recently provided Iraqi authorities with “several million dollars’ worth” of border security infrastructure to interdict illicit smuggling in the border area.

The Pentagon says US special forces at the isolated al-Tanf base in the Badia are there to keep pressure on IS in the border area, but rebels have told Al-Monitor that the proximity of Russian and Syrian forces on the roads outside the US-controlled zone make operations outside the area difficult.