NEW YORK, Nov 29 (Reuters) - Harrah's Entertainment Inc. (HET.N: Quote, Profile, Research), the world's biggest casino operator, is set to announce two casino-resort projects in Spain and Slovenia with a total value of about $1.37 billion, the Wall Street Journal reported on Tuesday.

The paper said Harrah's will announce an agreement this week with a Spanish development company to build a Caesars-brand casino resort in Ciudad Real, Spain.

The development, which will be majority owned by Harrah's, will have an 850-room hotel, a casino, a convention centre, a 3,000-seat theatre and a large spa and is valued at about $670 million, according to the Journal. It said Harrah's hopes to begin construction next year and open the resort in 2008.

It said that Harrah's has also started talks with Slovenian state-controlled casino concern HIT to develop a resort casino in Nova Gorica, near the Italian border.

For the project to succeed, the paper said the Slovenian government would have to change laws that cap foreign investment in single projects at 20 percent.