The Hungarian prime minister has also warned that the EU's rush to admit Ukraine would bring conflict to the heart of Europe

Ukrainian accession to NATO would lead to an immediate all-out war with Russia and World War III, according to Hungarian Prime Minister Viktor Orban. He has also cautioned against hastily admitting Ukraine into the EU.

Budapest has long opposed Brussels' policies on the Ukraine conflict, including weapons deliveries and sanctions on Russia. It has also urged against integrating Ukraine into NATO and the EU.

In a post on X on Saturday, Orban wrote that Ukrainian membership in NATO "would mean war with Russia, and World War 3 the very next day." He added that the "EU's reckless rush to admit Ukraine would pull the frontlines into the heart of Europe."

The Hungarian prime minister described the EU leadership's approach as "insanity," vowing not to "let them turn Europe into a battlefield.

Orban's X post came after an interview with Hungarian media on Friday, in which he argued that the admission of Ukraine into the EU would ruin the entire bloc, including Hungary's economy. He previously outlined his concerns over cheap Ukrainian produce undercutting Hungarian farmers.

He added that Ukraine's borders and population will remain fluid for as long as the conflict with Russia lasts, making EU membership untenable.

On Thursday, Budapest vetoed a joint EU statement on Ukraine at the Foreign Affairs Council in Brussels, effectively blocking Kiev's accession talks. Under EU rules, unanimous approval from all 27 member states is required to initiate the process.

According to a communique issued by the bloc, the issue is expected to be brought up again at the council's next meeting in October.

Commenting on his country's stance earlier this week, Orban cited the results of a consultative vote in Hungary that ran from mid-April to June 20, which asked: "Do you support Ukraine's European Union membership?" According to the prime minister, 95% of more than 2 million participants rejected Ukraine's EU aspirations.

Earlier this month, Orban insisted that even though the Ukraine conflict is "unwinnable... war-hungry politicians want us to believe that we must continue the war."

"We do not want to die for Ukraine. We don't want our sons to come back in a coffin. We don't want an Afghanistan next door," he said, calling for a diplomatic solution instead.

He went on to criticize the increasing militarization of the EU, for which the European Council formally approved a 150 billion ($171 billion) borrowing mechanism last month.

Moscow has long opposed Ukraine's bid to join NATO, but had until recently maintained a neutral stance regarding its EU ambitions. However, in light of the EU's "rabid" militarization, senior Russian officials have recently expressed reservations regarding EU membership as well.