Which of the following operations does the TACS support?

The correct answer highlights the broad scope of operations supported by the TACS, which encompasses a continuum of military engagements. TACS, or Theater Air Control System, is designed to support a range of military operations, including humanitarian assistance and disaster relief efforts, as well as more traditional combat operations, all the way up to strategic nuclear warfare.

By stating that TACS supports operations "from military operations other than war to strategic nuclear war," it underscores the flexibility and versatility of the system. This means that TACS can adapt to various operational environments and contingencies, implementing air control measures that are appropriate for the specific type of military engagement being conducted.

The other options imply a more limited scope of operations, which does not accurately reflect the comprehensive capability of TACS in addressing the diverse and evolving nature of conflicts. Thus, this answer encapsulates the full spectrum of operations, making it the most accurate choice.