CHARLEVOIX, QUEBEC — Top diplomats from the Group of Seven leading industrial nations gathered Thursday in Charlevoix, Quebec, as host country Canada outlined its top agenda, focusing on achieving a “just and lasting peace in Ukraine” and strengthening security and defense partnerships as the G7 marks 50 years. During the opening remarks, Canadian Foreign Minister Melanie Joly said, “Peace and stability is on the top of our agenda, and I look forward to discussing how we can continue to support Ukraine in the face of Russia’s illegal aggression.” Joly also emphasized the importance of addressing maritime security challenges, citing threats such as “growing the use of growing shadow fleets, dark vessels” and “sabotage of critical undersea infrastructure.” U.S. Secretary of State Marco Rubio has said he hopes a ceasefire between Russia and Ukraine could take place within days if the Kremlin agrees. He also plans to urge G7 foreign ministers to focus on ending the Russia-Ukraine war. The G7 talks in Quebec follow U.S.-Ukraine talks in Jeddah, Saudi Arabia, where Ukraine said it is ready to accept a U.S. proposal for “an immediate, interim 30-day ceasefire.” “Ukraine is committed to moving quickly toward peace, and we are prepared to do our part in creating all of the conditions for a reliable, durable, and decent peace,” Ukrainian President Volodymyr Zelenskyy wrote Wednesday in a post on social media platform X. He added that “Ukraine was ready for an air and sea ceasefire,” and “welcomed” the U.S. proposal to extend it to land. Russian President Vladimir Putin said Thursday that Russia supports the U.S. ceasefire proposal in principle, but key details still need to be worked out. “Ceasefire, they can’t be coming with conditions, because all these conditions just blur the picture. Either you want to end this war, or you don’t want to end this war, so we need to be very firm,” said European Union foreign policy chief Kaja Kallas during an interview with CNN International. “What we need to keep in mind is that Russia has invested, like over 9% of its GDP on the military, so they would want to use it,” Kallas said, adding the European nations “are massively increasing” their “defense investments.” The G7 talks bring together ministers from Britain, Canada, France, Germany, Italy, Japan and the United States. Rubio has underscored the need for monitors if a ceasefire is implemented. He told reporters on Wednesday that “one of the things we’ll have to determine is who do both sides trust to be on the ground to sort of monitor some of the small arms fire and exchanges that could happen.” Beyond Ukraine, G7 foreign ministers also discussed China’s role in global security, Indo-Pacific stability, and maritime security behind closed doors. Rubio is expected to have a pull-aside meeting with Japanese Foreign Minister Takeshi Iwaya on Thursday.