The F-35 fighter is the technically most advanced fighter jet currently in serial production.It is capable of performing a diverse array of missions, from air-to-air combat to precision bombing to radar jamming to intelligence gathering. With 16 countries having committed to purchasing it, the advanced jet is receiving widespread acceptance across various nations.While the original configuration is very well thought out, it will need significant upgrades to maintain its edge as the fighter will be operating till 2070.In line with this, the Joint Program Office has begun executing the most ambitious round of upgrades since the fighter’s inception two decades ago, called Block 4.Block 4 will introduce over 75 major upgrades to the fighter.In this video, Defense Updates analyzes how F-35 is getting much more lethal ?#defenseupdates #F35 #f35lightning