what are some similarities and differences between the Anctient New Eastern and the structure of Deuteronomy?

Answer 1

In format Deuteronomy is most compatible with Hittite suzerain-vassal treaty texts -- secular texts which "find their florescence in a period slightly later than 1400 (BC)" and went out of style in 1200 BC.

http://www.tektonics.org/jedp/deut.html