The entire country will be the moon's penumbral shadow cast by the sun. When you look up at the sun from within this shadow, you will notice that the sun seems to look like a cookie with a bite out of it. This is because the moon, as it orbits the earth, is occulting, i.e. blocking, the sun. The size of the bite depends where in the shadow the observer is. The deeper inside it you are, the larger the apparent bite will get.