This example visualizes a world map using an azimuthal equidistant projection, with countries rendered as light green SVG paths over a blue sphere. It loads geographic data from the world-atlas TopoJSON dataset via `d3.json`, converts it to GeoJSON features using `topojson.feature`, and draws them with `d3.geoPath` and `geoAzimuthalEquidistant`. The code imports these functions from the d3 v5 and topojson libraries within a React framework context.