A lack of long-range missiles and artillery shells is limiting Ukraine’s fightback against Russia, President Volodymyr Zelensky told a defence conference on Saturday, making a fresh appeal for more weapons. Later in the day, delegates at the conference also discussed the situation in Gaza, with some holding out slim hopes of a lasting solution to end the Israel-Hamas war. Zelensky’s call at the gathering of 180 leaders and defence chiefs at the Munich Security Conference comes at a critical juncture, with Ukraine’s troops forced to withdraw from the frontline city of Avdiivka to avoid being encircled. “Ukrainians have proven that we can force Russia to retreat,” he said, adding that “our actions are limited only by the sufficiency and length of the range of our strength… (the) Avdiivka situation proves this.” “Keeping Ukraine in artificial deficits of weapons, particularly in deficits of artillery and long-range capabilities, allows Putin to adapt to the current intensity of the war.” With the war about to enter its third year, Ukraine is under mounting pressure over the ammunition shortfall.