The battle between the warriors and pacifists has raged in the libertarian movement always.
In the founding days of the Libertarian party, anti war sentiment was higher than most other times.
The larger part of the libertarian anti war movement was primarily anti draft, with the telling motto "slaves cannot be effective fighters for liberty". There was, however a group that was against even self defense.
At no time has the libertarian movement been either Republican or Democrat. There has always been talk about the fact that on the social side of libertarianism, many Democrats could agree. It was hoped that this agreement would pull some Democrats to the libertarian ideas if not the Libertarian party.