The reason Formula 1 will not have races in April
Formula 1 and its governing body, the FIA, announced a couple of weeks ago that the Grand Prix races in Bahrain and Saudi Arabia will not be held in April due to security reasons related to the war in Iran.

TL;DR
- The Bahrain and Saudi Arabian Grand Prix races scheduled for April have been canceled by Formula 1 and the FIA due to security reasons related to the Middle East conflict.
- The decision prioritizes the safety and well-being of the Formula 1 community.
- No replacement races will be scheduled, creating a five-week gap in the F1 calendar.
- Andrea Kimi Antonelli has become the new leader of the Formula 1 World Championship after winning the Japanese Grand Prix.