The General Dynamics F-16 Fighting Falcon is an American air superiority fighter that Kyiv has begged for since the start of the full-scale invasion and is expected to finally start receiving this year.
It’s a versatile workhorse of a jet that’s fought in dozens of wars and is
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Land superiority is easier to match with improvisation, weather conditions and expendable soldiers. Air superiority is pretty much guaranteed with superior technology (which F16 might be) and well trained pilots. Also air superiority can shit the balance for land superiority
The delay gave Russia time to create more defensive barriers against tanks. Jets provide additional air defense and longe range strike capabilities. Breaking Russian supply lines will make ground forces more effective.
The F-16s are capable of raining JDAMs on Russian Armor and defensive positions and this will likely be their primary role after they are done running SEAD / DEAD missions against Russian Air Defenses…another thing they’re quite good at.