Western is a regional term based mostly off racial and philosophical proximity. Islamic is a religious one. There is East Asian civilization as well based off race and Confucius ideology.
There is no "East Asian" civilization either. Japan and China are a part of one civilization? Vietnam and South Korea too? All of them? Are you kidding me? It is just idiot westerners who make this words up and have things clarified in their minds.
All of these terms originated in colonial period where colonialists needed to separate themselves from the "other" ...
In reality, there isn't any "Western Civilization" just as there isn't any "Islamic Civilization" , "East Asian Civilization" and so forth....
Though we all would like to believe there is...so someone from Spain will have this notion "Oh, I'm the part of "Western Civilization" which is ruling the world right now..You know it gives us assurance and 'warm feeling'..Similarly, some Muslim from South Asia can also say "Oh, I'm the part of Islamic Civilization...the most successful civilization in human history..that remained global leader for 70% of its entire 1400 years history! And now its coming back from its decline" blah blah...
But in reality, only U.S is 'ruling the world' right now, while all other Western countries are energyless entities with no significance at all...No youth, no vibrant political culture , no expanding economies etc etc...
The term 'civilization' itself was created in France during colonial period...
In the end its the culture that matters. Pakistanis are closer in culture to south Asia rather than the middle east.
I know. We Pakistanis are South Asians..duhh...Only dumb-***** in the west will think Pakistan as a part of "Middle-East" (a region which doesn't exist to begin with. The word Middle-East was created by British just for their own sake. But now, everyone uses it..funny)