"I say: we are not 'the pirates of the Caribbean'. We are in the 21st century, we have co-operation with all the countries and who respect our work."
Hawass told the Associated Press that his goal was to temporarily display some of the pieces in Egypt's planned Grand Museum, located next to the Great Pyramids of Giza and expected to open in 2012.
Too fragile to travel
Hawass said Egypt was seeking "unique artifacts" from at least 10 museums around the world, including the Louvre in Paris and Boston's Museum of Fine Arts.
He has also requested the British museum return the Rosetta Stone, a 1,680 pound slab of black basalt with an inscription that was the key to deciphering ancient Egyptian hieroglyphics.
But many museums are reluctant to hand over some of their most prized possessions. Germany says the bust of Nefertiti is too fragile to travel to Egypt.
"Our Egyptian colleagues know very well that Nefertiti will never leave Berlin for two reasons: Firstly, due to reasons of conservation," said Dietrich Wildung, head of Berlin's Egyptian Museum Berlin.
"Secondly, for security reasons. Given the current international political situation, it would be completely irresponsible to allow such a piece of art to travel such a far distance."
But Hawaas warned that if Berlin rejects a loan in exchange for the 3,000 year-old bust of the wife of the pharaoh Akhenaten, he will prove it was stolen and try to bring it back to Egypt permanently.
"If Berlin will not agree to give us the loan, we will fight back to bring this bust for good."
Egypt is also seeking artifacts suitable for display at the 2010 debut of the Atum Museum in the Nile Delta city of Meniya.
Legal battle
Hawass has sought help from Unesco in retrieving the artifacts, but it is unclear what Egypt can do to win back the artifacts, beyond exerting public pressure.
Recourse to the courts in the various museum's countries would mean a costly legal battle whose outcome could not be guaranteed.
Germany says the bust of Nefertiti is too
fragile to travel to Egypt [GETTY-GALLO]
The British Museum confirmed on Thursday that it had received a letter from Hawass seeking a loan of the Rosetta stone and that the request would go to the museum's trustees for consideration.
"We have received the letter ... and will consider it at the appropriate moment," Hannah Boulton, a museum spokeswoman, said.
The Louvre also confirmed it had received a letter from Hawass, in this case requesting a zodiac-themed ceiling painting from the Dendera Temple.
"We will treat it, as well as any other loan request," Benedicte Moreau, a spokeswoman for the museum, said on Thursday in a written statement.
Hawass has also sent letters requesting the bust of Anchhaf, the builder of the Chephren Pyramid, from Boston's Museum of Fine Arts, and the statue of Hemiunu, the nephew and vizier of the pharaoh Khufu - the builder of Egypt's largest pyramid - to Germany's Roemer-Pelizaeu museum.