UK-donated Challenger 2 tanks have reportedly been used by Ukraine in an incursion into Russia's Kursk Region, with footage suggesting the destruction of at least one tank by Russian forces. Despite this, the UK Ministry of Defence maintains that Ukraine has the right to use UK-supplied weapons for self-defense, which includes operations inside Russia. Ukrainian President Volodymyr Zelensky is urging Western allies to approve the use of long-range missiles to enhance their offensive capabilities. However, the UK has refused to allow the use of Storm Shadow missiles in this context, fearing escalation. France, which co-produces the missiles, also influences this decision, allowing strikes only on specific Russian sites. The offensive has garnered mixed reactions from Western allies, with some supporting the broader use of supplied weaponry while others remain cautious about escalating the conflict.