An improved variant of China’s J-11B aircraft has reportedly entered batch production, and experts said on Thursday that this type of heavy fighter jet has possibly received upgrades on its radar system that can increase its situational awareness and combat range.

The war in Afghanistan — the world’s deadliest ongoing conflict — enters a crucial phase in 2021. The United States is set to withdraw all its troops from Afghanistan by May as part of a deal with the Taliban aimed at ending the 19-year war.

The Sudanese government says the country’s military forces have taken control of most of the agricultural land allegedly occupied by Ethiopians near the border between the two countries. Tensions have flared since the outbreak of a conflict in Ethiopia’s northern Tigray region last month and the arrival of thousands of …