For US special operators, the war is a reminder that such a network won't always be available.
Ukraine thwarted Russia's initial attack and, with extensive Western support, has driven Russia's forces back.
Logistics and special operatorsRomanian, Ukrainian, and US Army Green Berets conduct close quarters battle training in Romania in May 2021.
We are trained and mentally prepared to fight without much logistical support," said the Green Beret, who was granted anonymity to discuss potential future operations.
"Again, depending on the unit and the mission, we will require some sort of logistical support eventually.