Ukrainian President Volodymyr Zelensky visited Washington Thursday to appeal for help fighting Russia, winning warm words of support and weapons from Joe Biden but confronting skeptical Republicans who want to cut off aid. “We’re with you and we’re staying with you,” Biden told the Ukrainian leader after their top teams met at White House to thrash out Zelensky’s demands for more arms to push back the Russian invasion. Wearing his trademark olive green military-style shirt, Zelensky said Ukraine “has exactly what our soldiers need” after Biden announced a new package of US military aid, including sophisticated air defense weapons. But behind the visuals — firm handshakes across a grand cabinet table and shows of solidarity in the Oval Office — lay the fact that Zelensky’s second wartime trip to Washington was far tougher than the first. Where Zelensky received a hero’s welcome when he visited in December, this time he spent his closed-door meetings in the US Congress desperately trying to overcome growing war fatigue from Republicans. Hardline Republicans are threatening to block Democrat Biden’s request for a fresh $24 billion aid package for Ukraine, and it has now become caught up in a bitter spending battle that could spark a US government shutdown. Biden said alongside Zelensky that there was “no alternative” to backing the Ukraine funding, adding that he was “counting on the good judgment of the United States Congress.” Speaking later at the National Archives, Zelensky said, “I assured President Biden that we in Ukraine will not give up and he assured me that America will be with us, as long as it takes.” The US president said the first US M1 Abrams tanks will arrive in Ukraine “next week,” boosting Kyiv’s forces as they battle Russian troops in a slow-moving counteroffensive. The latest US package would also strengthen Ukraine’s air defense capability, crucial at a time when the country faces repeated Russian missile and drone attacks. Zelensky arrived Thursday night in Ottawa, Canada for an unannounced visit. He was to meet Friday with Prime Minister Justin Trudeau and members of Canada’s large Ukrainian community, and give a speech to parliament. In Washington the Ukrainian leader arrived right after another wave of Russian missile strikes, hitting cities across the country and killing at least three people in Kherson and wounding many in other areas. Zelensky thanked Biden for the “vital assistance provided by the United States to combat Russian terror, really terror.” As part of his bid to win over Washington, Zelensky went to the Pentagon where he laid a wreath at a memorial for victims of the September 11, 2001 attacks. But in a blow to Zelensky, Biden rejected for now a request for longer-range ATACMS missiles that can strike up to 300 kilometers (190 miles) away, the White House said. Ukraine and the United States have agreed to launch joint weapons production in a step that will enable Kyiv to start producing air defense systems, President Volodymyr Zelensky said on Friday as he wrapped up a visit to the US. In his daily address to Ukrainians, Zelensky said the long-term agreement would create jobs and a new industrial base in Ukraine, whose economy has been devastated by Russia’s invasion and war. “It was a very important visit to Washington, very important results,” Zelensky said in a video posted on the presidential website on Friday morning. “And a long-term agreement we will work together so that Ukraine produces the necessary weapons together with the United States. Co-production in the defense (sector) with the United States is a historic thing.” Kyiv has stepped up efforts to boost domestic weapons production as much as possible because 19 months of war has created a huge demand for arms and ammunition to fend off Russian attacks along a 1,000 km (620 mile) front line. Russian air strikes across Ukraine have caused widespread damage and killed many people. Zelensky said the Ministry for Strategic Industries, which oversees weapons production in Ukraine, had signed cooperation agreements with three associations, uniting over 2,000 defense US companies, on future possible work in Ukraine. “We are preparing to create a new defense ecosystem with the United States to produce weapons to strengthen further freedom and protect life together,” Zelensky said without disclosing more details. Ukraine depends heavily on Western military support. To reduce its dependence, Zelensky and his team have been pushing for reforms in the domestic defense industry to modernize local producers and increase supplies to the front. Zelensky has said previously that Kyiv will soon host an international arms production forum, inviting companies from over 20 countries. The government is also implementing reforms at its main weapons production company Ukroboronprom to improve transparency, boost production capacity and enable it to cooperate more actively with Western producers. Ukraine has already agreed several joint projects with central European producers to repair Ukrainian tanks and other vehicles, and has been working to develop drone and missile production.