 Nearly 1,000 participants in Bulgaria included members of the 5th Battalion, 7th Air Defense Artillery out of Germany.USAREUR directed the execution of "warm-basing" at JTF-East in November 2007 to maintain the facilities and facilitate various training missions and on-going humanitarian civil assistance (HCA) missions.The site at Novo Selo Training Area in Bulgaria was closed completely, while the area of the Temporary Forward Operating Site and PFOS construction at MKAF, Romania became the focal point of JTF-East efforts.