F-35 Block 4 – The Defense Post

Mar- 2026 -

5 March

Air

The F-35 Lightning II: A Guide on the Fifth-Generation Multirole Fighter

Stealth, sensors, and software converge in the F-35 Lightning II. This guide unpacks how the fighter connects pilots, platforms, and domains into a single combat system.

Pentagon’s F-35 Block 4 Modernization Pushed to 2031 Amid Rising Costs, Oversight Changes

The US Department of Defense faces a new timeline for the F-35 Joint Strike Fighter’s Block 4 modernization, which is now not expected to be finished until 2031 at the earliest, the Government Accountability Office said in a new analysis.