In the 9th century BC, Assyrians based in northern Iraq started a relentless process of expansion that within two centuries would see them controlling most of the ancient Near East. Traditional explanations for the decline of the Neo-Assyrian Empire in the 7th century BC have emphasized the role of military conflict, and especially the destruction of the Assyrian capital, Nineveh, by a coalition of Babylonian and Median forces in 612 BC.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/%E2%80%9Cno-harvest-was-reaped%E2%80%9D-demographic-and-climatic-factors-decline-neo-assyrian-empire
[2] http://admin.indiaenvironmentportal.org.in/category/author/adam-w-schneider
[3] http://admin.indiaenvironmentportal.org.in/category/author/selim-f-adal%C4%B1
[4] http://admin.indiaenvironmentportal.org.in/category/journal/climatic-change
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drought
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/iraq
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/history
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-impacts