Direct Hit Missle War.
Shame the game wasn't finished. The premise of the game sounds interesting, researching and designing your own missile and base components ( engines, stealth, ecm, missile defense ) then flinging them to the enemy's base in order to destroy his infrastructure while enemy does the same to you. Other than missle war part, you had your standard base building and power/resources/research management.

The other game is Frontile Attack: War Over Europe. Very dated now but I remember having a blast playing it as a kid.