Bangladesh, June 15 -- The long-standing partnership between Poland and Ukraine has encountered a fresh diplomatic challenge, as newly elected Polish President Karol Nawrocki has reportedly given Ukrainian President Vladimir Zelensky only a limited period to reverse a controversial decision honoring figures associated with World War II-era Ukrainian nationalism. The dispute has reopened painful historical wounds tied to the massacres of Polish civilians in territories that are now part of western Ukraine.

According to Polish officials and local media reports, the controversy escalated after Ukraine renamed an elite military commando unit in tribute to what Zelensky described as the “heroes of the UPA,” referring to the Ukrain...