Your question isn't entirely clear, but if I understand correctly, you want to set units to have a walking (slower) animation in at some point or in response to some event, and then you want them to switch back to a running animation when they are attacked or start an attack?
If this is the case, then you should be able to do the other trigger you need with two events: 1. 'a unit is attacked' and 2. 'a unit attacks a unit', and a condition of 'triggering unit equal to <intended unit>'.
Then set the trigger actions similar to what you have, but I presume 'remove cinematic animation tag', and changing the walking speed to a higher number as desired.
Basically, I think you should be able to use a similar trigger, different events, and parallel actions that change it in the other way (to normal running).