A look back :
70s : the world saw a bunch of communist wars, and in middle east it was arab-israel war.
80s : Afghan-Russia war, and Iraq-Iran war. In the west it was UK-Argentina war.
90s : Iraq-US war, aka 1st gulf war. Civil war in Afghanistan between Talibans and Mujahedin groups. And in Europe Bosnian war.
Then again, this decade was the most peaceful one that I have witnessed. Fall of communism, end of cold war, end of the fear of a nuclear war, de-militarization, de-nuclearalization. The future seemed so promising and peaceful. Everything ended on 2001, after world trade center attack.
2000s : Afghan-US war. Iraq-US war, 2nd gulf war.
2010s : Syrian civil war.
The coming decade for sure will come up with its new war on new frontiers. Cause, nothing ever ends. When-where-and-what that's the question.
Interestingly every decade had its share of a war in the middle east. The upcoming decade will have too.