Simplify the following text for a Grade 14 native English-speaking person.
Original: The party operates in Armenia and in countries where the Armenian diaspora is present , notably in Lebanon and the ethnically Armenian-dominated Republic of Nagorno-Karabakh .
Simplified: The party works in Armenia and in countries where the Armenian diaspora is active , notably in Lebanon and the ethnically Armenian-dominated de facto Republic of Nagorno-Karabakh .