President Volodymyr Zelenskyy said Thursday that “a Ukraine that is winning” should become a European Union member, arguing the bloc wouldn’t be whole without his country being an integral part of the EU.

Zelenskky made his comments during an address to the European Parliament on a rare trip outside Ukraine, which has been trying to repel a full-scale invasion by Russia for nearly a year.

The Brussels visit came as Russia intensified its attacks in eastern Ukraine amid signs that a major new offensive by Moscow was underway before the Feb. 24 anniversary of the war.

Zelenskky, who also visited the U.K. and France on a whirlwind European tour that started on Wednesday, will already head home with heaps of goodwill and commitments of more military aid.

He arrived to the European Parliament to rapturous applause, cheering and hoots from legislators, insisting in his plenary speech that Ukraine’s fight against Russia was one fought for the freedom of Europe as a whole.

“A Ukraine that is winning is going to be member of the European Union,” Zelenskyy said to applause, building his address around the common destiny that Ukraine and the 27-nation bloc face in confronting Russia head-on.

Zelenskyy added that Russia wants to destroy the European way of life, but “we will not allow that.”

He held up an EU flag after his address and the entire legislature stood in somber silence as the Ukrainian national anthem and the European anthem “Ode to Joy” were played one after the other.

Zelenskyy then headed to the urn-shaped Europa building, where the 27 EU leaders were meeting in a summit, to push those same points.

EU Leader Pushes for Fighter Jets

Before Zelenskyy spoke, European Parliament President Roberta Metsola said allies should consider “quickly, as a next step, providing long-range systems” and fighter jets to Ukraine. Metsola said the response to Russian President Vladimir Putin’s war against Ukraine “must be proportional to the threat, and the threat is existential.”

Metsola also told him that “we have your back. We were with you then, we are with you now, we will be with you for as long as it takes.”

EU leaders were hoping to impress on Zelenskyy that the powerful bloc is steadfast in its support for Ukraine as Russia is feared to be making moves for a new offensive.

The latest draft of the summit conclusions seen by The Associated Press says “the European Union will stand by Ukraine with steadfast support for as long as it takes.” Military analysts say Putin is hoping that Europe’s support for Ukraine will wane.

German Chancellor Olaf Scholz said the bloc will send Zelenskyy “this signal of unity and solidarity, and can show that we will continue our support for Ukraine in defending its independence and integrity for as long as this is necessary.”

Zelenskyy’s high-profile pursuit of more Western military aid came as evidence mounted that Russia’s anticipated offensive around the anniversary of the invasion is starting to take shape.

The Kremlin’s forces “have regained the initiative in Ukraine and have begun their next major offensive” in the eastern Luhansk region, most of which is occupied by Russia, the Institute for the Study of War, said in its latest assessment.

“Russian forces are gradually beginning an offensive, but its success is not inherent or predetermined,” the U.S.-based think tank said.

Zelenskyy used the dais of the European Parliament hoping to match Wednesday’s speech to Britain’s legislature when he thanked the nation for its unrelenting support.

That same support has come from the EU. The bloc and its member states have already backed Kyiv with about 50 billion euros ($53.6 billion) in aid, provided military hardware and imposed nine packages of sanctions on the Kremlin.

The EU is in the midst of brokering a new sanctions package worth about 10 billion euros ($10.7 billion) before the war’s anniversary. And there is still plenty of scope for exporting more military hardware to Ukraine as a Russian spring offensive is expected.

Russia is also watching Zelenskyy’s movements closely. On Wednesday, Russian state television showed the flight path of a British air force plane that Zelenskyy used to travel to London taken from a flight monitoring site. The anchor noted that the plane flew from the Polish air base in Rzeszow that serves as a hub for Western arms deliveries to Ukraine.

A high-profile visit to EU headquarters where the summit was being held should add to the goodwill to help his country on to the road of accession talks. Ukraine is talking about joining the EU in a matter of years, while practice has shown it can take decades before aspiring members are considered fit to join.

Beyond EU top officials like the summit host, European Council President Charles Michel, and European Commission President Ursula von der Leyen, Zelenskyy should find time for bilateral meetings with leaders to press for more hardware, ranging from ammunition to warplanes — something the bloc as a whole doesn’t possess but individual countries do.

Meanwhile, fighting intensified in Ukraine on Thursday.

In the eastern Donetsk region the front line expanded significantly over the previous day, with fierce battles taking place as Moscow’s forces closed in on key Ukrainian-held towns, according to regional Gov. Pavlo Kyrylenko. Russian shelling struck a kindergarten, hospital, cultural center, factory and apartment buildings, he said.

“The intensity of the shelling has increased dramatically and we are seeing a significant intensification of activity by the Russian army immediately in the south, center and north of the region,” Kyrylenko said. “Russia is again actively using combat aircraft to shell our cities and villages.”

Russian forces also stepped up their attacks in neighboring Luhansk province, launching “a broad offensive,” regional Governor Serhii Haidai said.

In the northeastern Kharkiv province, 23 cities and villages came under shelling. In the border city of Vovchansk, shelling damaged around 10 apartment buildings.