This interactive map visualizes immigrant flows between countries, with each line representing migration from an origin to a destination country. Clicking a country highlights it in red and filters the visualization to show only its incoming migration flows, while all other flows remain hidden. The map uses a natural Earth projection via `geoNaturalEarth1` and `geoPath`, with curved lines generated by `d3.ForceEdgeBundling` to reduce visual clutter. The data comes from CSV files loaded with `d3.csv`, and the interface is built with React, allowing users to zoom and pan the SVG-based visualization.