What governments fought each other for the possession of the island? puerto rico

The US in in possession of Puerto Rico. The US won Puerto Rico in a war.

Governments: US and Spain

Only one year after Spain granted Puerto Rico self-rule, American troops raise the U.S. flag over the Caribbean nation.

Near the end of the Spanish-American War, U.S. forces launched an invasion of Puerto Rico. U.S. troops were able to secure the island by mid August.

Explanation:

lack of land area is one of the things not mentioned that has contributed to the poor transportation and communication systems in nicaragua.