EXPLAINER: Why Ukraine’s request to join is big test for EU


              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, France's President Emmanuel Macron, Ukraine President Volodymyr Zelenskyy and German Chancellor Olaf Scholz leave at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukraine President Volodymyr Zelenskyy, left, embraces France's President Emmanuel Macron at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, Ukraine President Volodymyr Zelenskyy, France's President Emmanuel Macron and German Chancellor Olaf Scholz attend a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              German Chancellor Olaf Scholz, left, watches Ukrainian President Volodymyr Zelenskyy shaking hands with French President Emmanuel Macron, second left, as Romanian President Klaus Iohannis, right, and Italian Prime Minister Mario Draghi look on before a meeting in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, France's President Emmanuel Macron, Ukraine President Volodymyr Zelenskyy and German Chancellor Olaf Scholz leave at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukraine President Volodymyr Zelenskyy, left, embraces France's President Emmanuel Macron at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, Ukraine President Volodymyr Zelenskyy, France's President Emmanuel Macron and German Chancellor Olaf Scholz attend a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              German Chancellor Olaf Scholz, left, watches Ukrainian President Volodymyr Zelenskyy shaking hands with French President Emmanuel Macron, second left, as Romanian President Klaus Iohannis, right, and Italian Prime Minister Mario Draghi look on before a meeting in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, France's President Emmanuel Macron, Ukraine President Volodymyr Zelenskyy and German Chancellor Olaf Scholz leave at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukraine President Volodymyr Zelenskyy, left, embraces France's President Emmanuel Macron at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, Ukraine President Volodymyr Zelenskyy, France's President Emmanuel Macron and German Chancellor Olaf Scholz attend a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              German Chancellor Olaf Scholz, left, watches Ukrainian President Volodymyr Zelenskyy shaking hands with French President Emmanuel Macron, second left, as Romanian President Klaus Iohannis, right, and Italian Prime Minister Mario Draghi look on before a meeting in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, France's President Emmanuel Macron, Ukraine President Volodymyr Zelenskyy and German Chancellor Olaf Scholz leave at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukraine President Volodymyr Zelenskyy, left, embraces France's President Emmanuel Macron at the end of a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              Ukrainian President Volodymyr Zelenskyy speaks during a working session with German Chancellor Olaf Scholz, French President Emmanuel Macron, Romanian President Klaus Iohannis and Italian Prime Minister Mario Draghi in Mariyinsky Palace, in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, Romanian President Klaus Iohannis, Prime Minister of Italy Mario Draghi, Ukraine President Volodymyr Zelenskyy, France's President Emmanuel Macron and German Chancellor Olaf Scholz attend a conference at the Mariyinsky palace in Kyiv, Ukraine, Thursday, June 16, 2022. (AP Photo/Natacha Pisarenko)
            
              German Chancellor Olaf Scholz, left, watches Ukrainian President Volodymyr Zelenskyy shaking hands with French President Emmanuel Macron, second left, as Romanian President Klaus Iohannis, right, and Italian Prime Minister Mario Draghi look on before a meeting in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              From left, German Chancellor Olaf Scholz, French President Emmanuel Macron, Ukrainian President Volodymyr Zelenskyy, Italian Prime Minister Mario Draghi and Romanian President Klaus Iohannis pose for a picture at the Mariyinsky Palace in Kyiv, Ukraine, Thursday, June 16, 2022.  Four European leaders, of France, Italy, Germany and Romania, made a high-profile visit to Ukraine, where they were saw the ruins of a Kyiv suburb on Thursday and denounced the brutality of a Russian invasion that has killed many civilians. (AP Photo/Natacha Pisarenko)
            
              Members of the Ukrainian community in Portugal demonstrate outside of the Netherlands embassy in Lisbon in support of Ukraine joining the European Union, Wednesday, June 15, 2022. French President Emmanuel Macron said Wednesday that a "message of support" must be sent to Ukraine before EU heads of state and government "have to make important decisions" at their Brussels meeting. The leaders are scheduled to consider Ukraine's request for EU candidate status. (AP Photo/Armando Franca)
            
              Members of the Ukrainian community in Portugal demonstrate outside the Netherlands embassy in Lisbon in support of Ukraine joining the European Union, Wednesday, June 15, 2022. French President Emmanuel Macron said Wednesday that a "message of support" must be sent to Ukraine before EU heads of state and government "have to make important decisions" at their Brussels meeting. The leaders are scheduled to consider Ukraine's request for EU candidate status. (AP Photo/Armando Franca)
            
              French President Emmanuel Macron, left, Italian Prime Minister Mario Draghi, center, and German Chancellor Olaf Scholz visit Irpin, outside Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              German Chancellor Olaf Scholz, left, shakes hands with Ukrainian President Volodymyr Zelenskyy, as French President Emmanuel Macron, center, looks on before a meeting in Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              Italian Prime Minister Mario Draghi, left, and French President Emmanuel Macron watch debris as they visit Irpin, outside Kyiv, Thursday, June 16, 2022. The leaders of France, Germany, Italy and Romania arrived in Kyiv on Thursday in a show of collective European support for the Ukrainian people as they resist Russia's invasion, marking the highest-profile visit to Ukraine's capital since Russia invaded its neighbor. (Ludovic Marin, Pool via AP)
            
              Czech Republic's Prime Minister Petr Fiala holds a speech at the Parliament in Prague, Czech Republic, Wednesday, June 15, 2022. The Russian military aggression against Ukraine and what Europe has to do to cope with the shockwaves it has caused have become the key task for the forthcoming Czech Republic's presidency of the 27-nation bloc. "Europe and the whole world have been undergoing an essential change," Prime Minister Petr Fiala said on Wednesday when he introduced his country's priorities to reporters. (AP Photo/Petr David Josek)