North Korea on Friday marked the 110th anniversary of the birth of its founder, Kim Il Sung, the grandfather of current leader Kim Jong Un, amid mounting concern that it would conduct military provocations directed against the United States.As speculation grew that North Korea may launch an intercontinental ballistic missile or carry out its seventh nuclear test on the occasion of the anniversary, the United States, Japan and South Korea strengthened surveillance on the country.The ruling Workers' Party of Korea decided in January to "significantly" celebrate the April 15 anniversary -- the…READ FULL ARTICLE