Muslims stand side by side, united on eid praying to one god, Allah سبحانه وتعالى. The next step is to expand this unity to the governing sphere where all Muslims unite under one political leadership, Al-Khilafah.

إِنَّ هَذِهِ أُمَّتُكُمْ أُمَّةً وَاحِدَةً وَأَنَا رَبُّكُمْ فَاعْبُدُونِ

“This Ummah of yours is one Ummah and I am your Lord, so worship Me.”
(Al-Anbiya’a, 21:92)

The Messenger of Allah ﷺ said,

إِنَّ اللَّهَ زَوَى لِيَ الأَرْضَ فَرَأَيْتُ مَشَارِقَهَا وَمَغَارِبَهَا وَإِنَّ أُمَّتِي سَيَبْلُغُ مُلْكُهَا مَا زُوِيَ لِي مِنْهَا

“Indeed Allah gathered up the earth for me so that I saw its eastern and western parts, and indeed the dominion of my Ummah will reach what was gathered up for me from it.” (Sahih Muslim)