War, Peace, & the UMC

In American Methodism:  A Compact History, Richey discusses the multitude of major issues the UMC faced upon its creation, let alone the US.  The biggest issue, of course, was race.  However, I do find it important to also to bring up the other hot topic, namely the Vietnam War.  Three of the first five resolutions dealt with war and peace in the first edition of The Book of Resolutions of The United Methodist Church:  1968; the first being called "U.S. Policy in Vietnam." Considering the UMC's initial social principles regarding military service and composition of the first BOR, I wonder how important the Vietnam War actually was to the merger that created the UMC.  How would the development of our Social Principles, even into the 21st century, be different if war and peace weren't such a prevalent issue in 1968?