Complex sentence: Which means if the U.S used any conventional methods in attempts to gain sea control, the Soviet Union might not see it as "convention sea control," but rather as forerunners to nuclear attack, also known as the attempt of nuclear damage limiting first strikes.
Split into simpler sentences: Which means if the U.S used any conventional methods in attempts to gain sea control. The Soviet Union might not see it as "convention sea control," but rather as forerunners to nuclear attack, also known as the attempt of nuclear damage limiting first strikes.