Kacper Pempel | ReutersPoland has said it will no longer supply its neighbor Ukraine with weapons, as a rift over agricultural exports deepens. Jonathan Ernst | ReutersWarsaw has been one of Kyiv's staunchest allies since mutual foe Russia invaded Ukraine in February 2022. Poland has donated a wide range of weaponry to Kyiv, from modern Leopard 2 tanks to Soviet-era fighter jets, as well as delivering military training to Ukraine's armed forces. A Polish farmer during an April 12, 2022 protest against Ukrainian grain imports, which have lowered prices for crops in Poland. In happier times: Ukraine's President Volodymyr Zelensky and Polish Prime Minister Mateusz Morawiecki embrace during a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023.

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