solved Questions: Does democratic peace work? Will the combination of liberal

Questions:
Does democratic peace work? Will the combination of liberal ideology and democratic institutions keep democratic states from fighting each other? Why?
Should we promote global democratization? Shall we pursue foreign policies that encourage democratization?

Reference:
*Owen, John M. 1994. “How Liberalism Produces Democratic Peace.” International Security 19(2): 87-125.

*Walt, Stephan. “Why Is America So Bad at Promoting Democracy in Other Countries?” Foreign Policy, April 25, 2016.
*Bacevich, Andrew J. “Trump’s Afghanistan ‘peace’ will be Vietnam all over again: A mess America leaves behind.” Los Angeles Times, Sep. 10, 2019.

Mansfield, Edward D., and Jack Snyder. 2002. “Democratic Transitions, Institutional Strength, and War.” International Organization 56(2): 297-337.

Links to the second and third source: 

https://foreignpolicy.com/2016/04/25/why-is-americ…

https://www.latimes.com/opinion/story/2019-09-09/d…