The three body engagement scenario is considered where an aerial missile, homing onto a target aircraft, encounters a defender missile launched by the aircraft. A given set of defender missile guidance laws, namely, proportional navigation and line-of-sight guidance are considered and analysis is carried out for proportional navigation and pure pursuit attacking missile strategies. Analytic capture zones and lateral accelerations ratios for the four resulting scenarios are derived. Closed form expression for attacking missile initial position and launch angles are derived for a successful evasion from the defender. Extensive numerical simulations are carried out which comply with the analytical findings.