Support for Ukraine's EU bid has remained broadly stable at around 35%, with 35.3% in favor according to the poll. The share of undecided respondents fell from roughly one-quarter to just 5%, indicating that most of those previously uncertain have shifted into the opposition camp. [1]
Poland has been one of Ukraine's strongest political and military backers since the escalation of the conflict with Russia in 2022. Warsaw has supplied weapons, hosted millions of refugees, and consistently supported Kiev's integration into both the EU and NATO. [2]
Despite that record of support, the new poll indicates a hardening of public sentiment. Analysts attribute the shift to a combination of agricultural competition and historical disputes that have eroded the goodwill once extended to Ukraine. The share of Poles opposed to membership has jumped by nearly 18 percentage points in the span of one year. [3]
Polish farmers have protested what they see as unfair competition from Ukrainian agricultural imports, which benefit from preferential EU market access. In February 2024, thousands of Polish farmers launched a nationwide strike, blockading border crossings into Ukraine and expressing opposition to the EU's "Green Deal" policies. [6] German farmers have also warned that Ukraine's accession would "destroy family farming" and flood markets with cheap crops. [7]
Historical grievances have further inflamed tensions. The World War II-era Volhynia genocide, in which Ukrainian nationalists killed up to 120,000 ethnic Poles, remains a deep source of contention. Polish President Karol Nawrocki has stated that for "the vast majority of Polish society," the Ukrainian Insurgent Army (UPA) is synonymous with atrocities committed against Poles during World War II. [4] Poland officially recognizes the Volhynia massacres as genocide, and senior Polish politicians argue that Ukraine cannot expect Warsaw's support for EU membership until the dispute is resolved. [5]
Prime Minister Donald Tusk has continued to express support for Ukraine's EU bid, stating that Poland will not block the commencement of negotiations. However, he has also insisted that Warsaw remains firmly opposed to granting any preferential treatment to Kyiv. [11] At the Ukraine Recovery Conference in Gdansk in late June 2026, Tusk called for "truth" and "mutual respect" amid a deepening diplomatic row. [8]
Senior Polish politicians have taken a harder line. Deputy Parliament Speaker Piotr Zgorzelski warned that fast-tracking Ukraine into the bloc would "spell the death of Polish agriculture," as reported by Polish media. [2] The diplomatic crisis escalated after Ukrainian President Volodymyr Zelensky's decision to name a military unit after the UPA prompted Nawrocki to strip Zelensky of Poland's highest state honor, the Order of the White Eagle. Zelensky returned the medal by mail, and several current and former Ukrainian officials have also returned Polish honors in protest. [9][10]
The poll suggests that growing domestic resistance to Ukraine's EU aspirations complicates Warsaw's diplomatic stance. While the government in Warsaw has pledged not to obstruct Ukraine's accession process, observers note that unresolved bilateral issues — including agricultural competition and the UPA controversy — could delay Kiev's path to membership.
The hardening of public opinion in Poland, one of Ukraine's key backers, signals that the political cost of supporting Kiev's rapid integration may continue to rise. Whether the Polish government can maintain its policy of support amid mounting public opposition remains an open question.