Best viewing: North America
Early on Tuesday, 18th of February, a phenomenon known as a “Lunar Occulation” is set to occur. This occurs when the view of Mars from Earth becomes skewed by the Moon itself – a lunar occulation of mars.
“Mars and Moon” by cafuego is licensed under CC BY-SA 2.0
Given clear skies, with the exception of Hawaii and Alaska, which will not be in the correct latitude / longitudinal requirements to experience the astrological spectacle, viewing will allow witness of this spectacle. Whether this occurs early (dawn) or later in the day depends on your exact geographical location, and will primarily be visible only from those in the North America / United States region.
Image: Lunar Occulation of Mars in 2003 by Andrew Chaikin
The west coast of the U.S. will witness the spectacle between the hours of 3-4AM (PST) and the east coast will experience the event at 8-9AM (EST), so a little later in the morning. A telescope is not needed – necessarily (depending on the lighting conditions in the atmosphere at the time). However, western areas probably have the better viewing given that conditions will still be pretty dark during the lunar occulation here, allowing for optimal viewing (of course, given skies are clear).