Correct Answer:
B. Ukraine
Explanation:
The ongoing conflict between Russia and Ukraine began in 2022 and continues as a major international war.
### Important Facts:
- Invasion Date: Russia launched its full-scale invasion of Ukraine on February 24, 2022.
- Pretext: Preceded by the 2014 annexation of Crimea and conflicts in the Donbas region.
- Global Impact: Generated massive global energy shocks, food security crises, and a major refugee wave across Europe.