GANTA, Liberia.February 8 (IRIN) - Shortly after David Wilson left his home in Ganta two years ago to buy cassava in a nearby village, a fierce battle between government and rebel forces broke out in the town behind him. When the retired schoolteacher finally returned to his house in the once bustling market town on Liberia's northern border with Guinea, there was no sign of his four children. "I was cut off from my children when the fighting broke out and all along I thought they were dead because the bombing and the gunfire was so heavy," Wilson told IRIN. For 18 months, he mourned their loss. In fact, his kids were safe. But thinking their parents had perished in the battle; they had fled over the nearby border to Guinea where they ended up in a refugee camp.