Gil Barndollar, a non-resident fellow at the U.S.-based Defense Priorities think tank, said the increase in unauthorised absences was most likely driven by exhaustion.
Ukrainian service personnel have previously said how the lack of replacements for lost soldiers puts an unbearable strain on those remaining, exhausting them physically and mentally.
Barndollar also highlighted their average age as an additional strain.
“An army of men, often in poor health, in their 40s, all else being equal, is going to get exhausted sooner and is going to have morale problems faster than a reasonably fit army of 20- or 25-year-olds.”
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