[ ...,
 {"name":"United States of America",
  "population":323947000, "latlng":[38.0,-97.0],
  "flag":"https://restcountries.eu/data/usa.svg"},

  {"name":"Mexico",

    "population":122273473,"latlng":[23.0,-102.0],

    "flag":"https://restcountries.eu/data/mex.svg"},
  ...

]

GET https://restcountries.eu/rest/v2/all