This is the 2273rd most frequent Arabic word.
الدولتين
"The two states"
Here, 'الدولتين' is in the dual accusative/genitive form and denotes 'the two countries' during the action described.
شهدت العلاقات الدولية العديد من التغيرات بين الدولتين في السنوات الأخيرة.
International relations have seen many changes between the two countries in recent years.
In this sentence, 'الدولتين' refers to 'the two countries', specifically serving as the complement to 'هاتين'.
تنتمي الثقافات في هاتين الدولتين إلى حضارات عريقة.
The cultures in these two countries belong to ancient civilizations.
The word 'الدولتين' here is in the dual form and refers to 'the two countries' engaged in cooperation.