Theresa May's new partners in government have strong historical links with Loyalist paramilitary groups. Specifically, the terrorist group Ulster Resistance was founded by a collection of people who went on to be prominent DUP politicians. Peter Robinson, for example, who was DUP leader and Northern Ireland’s first minister until last year, was an active member of Ulster Resistance. The group’s activities included collaborating with other terrorist groups including the Ulster Volunteer Force, to smuggle arms into the UK, such as RPG rocket launchers.
From https://www.opendemocracy.net/uk/adam-ramsay/so-who-are-dup