Iron Curtain (trail)

"So, what does this... Iron Curtain, do?
Simple, it makes things... invulnerable.
Invulnerable!?
Yes. Any structure or vehicle under its effect will become invulnerable."
- Gunter von Esling and Einstein, talking about the Iron Curtain

"Warning! An Iron Curtain has been detected!"
- RA2 advisor

"Do you know what it's like to be attacked by a wave of INDESTRUCTIBLE tanks? No? Then let me show you how the Iron Curtain works!"
- Oleg Vodnik

"Warning an Iron Curtain has been Activated!"
- Ra2 advisor

"!!!!!!!!!...................."