How to set trigger to be activated by other triggers

[best75]

From the screenshot below I do I make it so when the triggers "Base 1 raided" and "Base 2 Raided" are activated the trigger "Both Bases raided is activated.
I tried using set trigger state either it is not the one one or I am doing it wrong

[best75]

Also can I get help with how to set a trigger to activate when a bridge is destroyed. Below the strength of the bridge is set to 0 but its not activating when the bridge is destroyed.

[best75]

I figured it out. To get trigger to be activated by other tigger I needed to untick the enabled box. To set it use the trigger is activated when the bridge is destroyed I need to set strength to 1. These things weren't clear to me.

[adherbal]

Yes, the bridge status UI is wrong. It should display a toggle instead of a textfield. 1 means "dead", 0 means "alive".