en.wikipedia.org/wiki/Felipe_VI

Spanish Army records describe Felipe’s 1977 affiliation with the Regimiento de Infantería “Inmemorial del Rey” nº 1 as that of "soldado de honor" (honorary soldier), not an officer rank. The Army’s own 2017 article marking the anniversary says Juan Carlos I ordered his enrollment "como soldado de honor" and notes that nine-year-old Felipe entered the regiment in that status. So calling him an “honorary officer” is incorrect.

Under Spain’s constitutional system, the monarch is head of state, not the executive. Official explanations of Spain’s state organization say the political form is a parliamentary monarchy, that the monarch is the Head of State, and that executive power is exercised by the Government. The Constitution’s Article 97 likewise assigns domestic and foreign policy and executive authority to the Government. So describing Felipe VI as “nominally chief executive” misstates Spain’s constitutional structure.

The sentence is internally inconsistent. It says the total includes Puerto Rico, then labels the total as "sovereign countries." But official U.S. government sources classify Puerto Rico as a U.S. territory/commonwealth, not a sovereign state. The U.S. Department of the Interior defines Puerto Rico as a current U.S. insular-area commonwealth and as an unincorporated U.S. territory, and USAGov places Puerto Rico under U.S. state/territorial government information. So a list that includes Puerto Rico is not a list of sovereign countries.