Mačva is a district of Central Serbia.
Boundaries: Natural Earth (naturalearthdata.com), public domain
Nothing has been written about Mačva here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Šabac as the capital of Mačva. If that is wrong, tell us what it should be and where you read it.
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