Why North Korea Bombs Attack On South korea:Its 5 Reasons

North Korea South Korea bombed on Tuesday. According to military officials, North Korea bombed a South Korean island, near its western border in dispute.
The island is populated by South Korean and North Korean officials say the buildings set on fire.
South Korea quickly returned fire, but I fighter planes in the air.
At least two Marines were killed in South Korea and 16 others injured, according to South Korean Joint Chiefs of Staff, issued a statement calling the bombing as an "inhumane act."
The attack came amid tension over the North Korean demand has a uranium enrichment facility and a month after North Korean leader Kim Jong Il said his young son Kim Jong-un as his heir.