This paper describes the Live Synthetic Training and Test & Evaluation Infrastructure Architecture (LS TTE IA) prototype. The LS TTE IA was funded by PEO STRI and AMSO in FY14 with the intent of providing a technology insertion into LVC-IA, replacing the existing infrastructure with a cloud-enabled service-oriented architecture (SOA). This SOA infrastructure is being developed with the expressed goal of supporting both the Training domain and the Test & Evaluation community. It will be compliant with the Common Operating Environment (COE) and suitable for hosting within the COE Data Center/Cloud Computing Environment. The prototype architecture was developed in collaboration with Johns Hopkins University's LS TTE Enterprise Architecture (LS TTE EA) research which explored the business case and governance strategy for managing a SOA environment. The LS TTE EA is described, as well as the relationship of the LS TTE IA to the reference architecture of the LS TTE EA. This paper explains the SOA prototype layered architecture, and the initial services developed in FY14. Two concurrent projects under development in FY14 developed services that operate on the LS TTE IA infrastructure. This paper will briefly discuss those projects and their successful use of the infrastructure. Finally, the paper will discuss the planned FY15 infrastructure improvements and the forward looking implementation strategy.