This example displays a choropleth-style map of the United States with state boundaries and a blue spherical background. The visualization uses `d3.geoAlbers` and `d3.geoPath` to project and render geographic features from a TopoJSON dataset loaded via `d3.json` from the us-atlas repository. State interiors are drawn as red mesh lines using `topojson.mesh`, while the land mass appears in light green. The React component `CountryMap` constructs the SVG paths, with the map rendered at 1800 by 550 pixels.