PALM BEACH, Florida, Jan 7 (Reuters) - U.S.

President-elect Donald Trump on Tuesday would not rule out the

use of military or economic coercion in resolving his concerns

surrounding the Panama Canal and Greenland.

Asked at a news conference if he could assure the world he

would not use military or economic coercion in trying to get

control of those areas, Trump responded: "I can't assure you

-you're talking about Panama and Greenland. No, I can't assure

you on either of those two, But I can say this, we need them for

economic security."