We investigate the design and performance of ARQ-based systems for wireless point-to-point (P2P) communication links with perfect feedback channels in the presence of a strategic jammer over an additive white Gaussian noise channel subject to InterSymbol Interference (ISI). We define system-latency as the number of transmission attempts at the transmitter to achieve a successful transfer of a data packet to the receiver. We attempt to minimize it by modeling this as a constrained optimization problem where the system-latency is minimized such that the probability of successfully receiving a data packet at the receiver satisfies a prescribed guarantee. A game-theoretic formulation is provided. Numerical results are presented for illustration purposes.