What do President Trump's recent comments about his phone call with Putin mean for potential negotiations to end the war in Ukraine?

President Trump's Truth Social post reveals a significant diplomatic development, as he announced a "lengthy and highly productive phone call" with Vladimir Putin where they agreed to work together closely and have their teams begin immediate negotiations. Trump indicated he would inform President Zelenskyy of this conversation and has assigned key officials including Secretary of State Marco Rubio and CIA Director to lead the negotiations. However, BBC Security Correspondent Frank Gardner provides a cautious perspective, noting that while this development is meaningful, "it doesn't mean that there is going to be a successful outcome." The initiation of formal diplomatic channels represents progress, but the complex realities of the conflict, including Russia's military capabilities and Ukraine's challenging position with shifting global support, suggest that successful resolution remains uncertain despite these promising initial steps.