The US Navy's experience in the Korean War showed the need for a new long-range strike aircraft with high subsonic performance at very low altitude that could penetrate enemy defences and find and destroy small targets in any weather. The Grumman A-6 Intruder was designed with these needs in mind and was a true bomb truck. From the jungles of Vietnam to the deserts of Iraq the Intruder proved its worth, able to catty a plethora of weaponry and pack a mighty punch. From the Intruder airframe the KA-6D tanker variant was derived, along with the specialised EA-6A Intruder and then the EA-6B Prowler, a sophisticated four-seat electronic warfare variant, packed with jamming equipment and electronics.