The commander moved his troops to a lake names San Juan. The built there from a Costa Rican flag and hoisted their own. Then they dredged from a river and dumped sediments on the Costa Rican territory. According to La Nacion, the largest daily newspaper in Costa Rica, the commander relies on Google's map service - the official maps of both countries show a different boundary. In Costa Rica, a country without its own military, suggests the matter waves.

Google itself initially did not know how the error arose. Guilt was apparently the supplier of map data, the U.S. Department of State, which had moved about 2.7 kilometers to the border line. Already in the early summer Google had promised, in over 60 countries and regions to review and adjust the boundaries. This seems to be necessary. Sun complained to the Cambodian government in February that Google's border with Thailand in its card incorrectly.