AI 摘要
Canada and Ukraine sign a 100-year defense pact focused on drone technology and military cooperation.
international_relationsdefense_policy正向情感
本摘要由 AI 生成，请从原始来源核实细节。
Canada and Ukraine sign a 100-year defense pact focused on drone technology and military cooperation.
本摘要由 AI 生成，请从原始来源核实细节。