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US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)

US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)

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US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)

US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)

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US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)

US forces patrol near the Rumaylan (Rmeilan) oil fields in Syria's Kurdish-controlled northeastern Hasakeh province, on November 1, 2021. - The major Rmeilan field, located near a US airbase, has been among the Syrian Kurds' most prized assets since regime forces withdrew early on in the war. (Photo by Delil SOULEIMAN / AFP) (Photo by DELIL SOULEIMAN/AFP via Getty Images)