Geographic factors are known to play an important role in conflict. The Direct Contiguity data set registers the land and sea borders of all states since the Congress of Vienna, and covers 1816-2000.
Supplemental material, sj-zip-2-cmp-10.1177_07388942231171334 for Rugged terrain, forest coverage, and insurgency in Myanmar by Wilfred Chow and Enze Han in Conflict Management and Peace Science
