According to the Polish President, Ukraine joining NATO would move the Alliance’s eastern flank away from Poland.
From: Euromaiden Press BY EUHENIIA MARTYNIUK

Polish President Andrzej Duda emphasized that Ukraine’s membership in NATO and the EU aligns perfectly with Poland’s national interests.
His words reiterate the country’s strong backing of Ukraine in both alliances, contrasting calls from Hungary and Slovakia to resist Ukraine’s NATO membership.
“We would gain another powerful military partner in NATO, one with vast military experience. Ukraine undeniably possesses one of the world’s best and, in combat terms, most experienced armies, utilizing cutting-edge technologies, including unmanned systems. This is also of great significance for our security,” emphasized Duda.
He also expressed Poland’s support for Ukraine’s EU accession and hoped for active Polish involvement in Ukraine’s reconstruction.
The remarks were made during the Polish National Security Council meeting, attended by the new Prime Minister, Donald Tusk, and his government members.