Simplify the following text for a Grade 15 native English-speaking person.
Original: Greater Armenia ( Miats ` hal Hahastan ) , or United Armenia is an Armenian political goal aimed at uniting Armenia with most of the Armenian Highland , the historical homeland of the Armenians since antiquity up until the Armenian Genocide and Turkish War of Independence .
Simplified: Greater Armenia or United Armenia is an Armenian irredentist political goal aimed at uniting all territories perceived as `` historically or ethnically Armenian '' to the Republic of Armenia .