What are the primary threats addressed by the Fighter Block 4 upgrade?

The Fighter Block 4 upgrade is designed to address a comprehensive range of modern warfare challenges that contemporary fighter jets face. This includes advanced aerial threats like enemy fighter jets and unmanned aerial systems, as well as surface-to-air missiles, which have become more sophisticated and prevalent on the battlefield. Additionally, the upgrade focuses on countering cyber warfare tactics, recognizing that modern military conflicts increasingly incorporate cyber capabilities that can threaten aircraft systems and command networks.

By integrating cutting-edge technology and systems, the Fighter Block 4 upgrade enhances electronic warfare capabilities, improves radar systems, and boosts interoperability with other platforms and joint forces. This holistic approach ensures that pilots are prepared to combat an array of threats that span across multiple domains, including air, ground, and cyber.

In contrast, the other options do not encompass the full spectrum of threats that the Fighter Block 4 upgrade aims to mitigate. Focusing solely on air-to-air combat or conventional warfare does not reflect the necessity to deal with the evolving landscape of threats in modern warfare that includes advanced missile systems and cyber challenges. Ground troop support, while important, is only one aspect of the multifaceted operational environment addressed by the upgrade. Thus, recognizing the full range of threats ensures that air superiority can be maintained across diverse scenarios.