The onset of construction and personnel transfers to the island of Guam present a case study in which peacetime military operations threaten conservation of terrestrial biological resources. The planning process indicates land conversion, increased population, and invasive species arriving with increased imports are among the major impending threats. A poster presents an evidence of provocative historical events that marginalize the contributions of local stakeholders, mistake-ridden planning processes revealing inadequate efforts to safeguard terrestrial resources, and compelling evidence that predicts a path targeting imminent damage of terrestrial resources. We conclude that peacetime military operations should embrace conservation priorities to a greater degree.