# Engagements
For this last section, we are switching to another file to better illustrate some points about engagements. Demo-Engagement-Ranges.acmi is available on the Tacview website if you wish to follow along.
Engagement ranges in the form of colored half-spheres are displayed on appropriate objects by default.
If there is a line of sight between two selected objects, the line joining the objects will be green:
If there is no line of sight between the two objects, because the view is blocked by terrain for example, the line becomes a dotted red line:
This is the end of the Getting Started with Tacview chapter. All of the features outlined in this chapter are part of Tacview Starter which means they are free forever. In the next chapter, Standard and Advanced features, we will explore paid features and delve deeper into some of the features that we have described here.
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