forteca po angielsku:

You can still see the remains of the fortress there.

The fortress was in the enemy's hands.

No enemy army had ever been able to capture the fortress.

The fortress being out of supplies, its protectors had to give up.

The house of every one is to him as his castle and fortress, as well for his defence against injury and violence as for his repose.

With you here beside me I'm not afraid of anything. You're my fortress.

The fortress was secure from every kind of attack.

We are a fortress.

This place is a catholic stronghold.

The thief has to be in here. I'm sure somewhere around is his stronghold so if we can just find that we've got him.

Although Iran is nowadays known for being a stronghold of Shia Islam, most Persian Muslims were Sunni until the XVth century.