I still think that space attack is taking longer time—than missile attack during a nuclear war on Earth, and thus anti-ballistic missile systems of the future will be even more effective in its stopping; including space lasers. Incoming spaceship will be visible for days or even months.
Therefore, the only winning strategy is to make the attack spaceship either invisible or moving with very high speed. It is contradictory requirements as getting the spaceship to the high speed requires a lot of energy (or time if gravitational maneuvers are used).
I still think that space attack is taking longer time—than missile attack during a nuclear war on Earth, and thus anti-ballistic missile systems of the future will be even more effective in its stopping; including space lasers. Incoming spaceship will be visible for days or even months.
Therefore, the only winning strategy is to make the attack spaceship either invisible or moving with very high speed. It is contradictory requirements as getting the spaceship to the high speed requires a lot of energy (or time if gravitational maneuvers are used).