UNICEF TOPIC A: HOMELESS CHILDREN. A homeless is the condition of people without a regular dwelling. People who are homeless are most often unable to acquire and maintain regular, safe, secure, and adequate housing, or lack "fixed, regular, and adequate night-time residence. Street children are used as a catchall term, but covers children in a wide variety of circumstances and with a wide variety of characteristics. Policymakers and service providers struggle to describe and assist such a sub-population. Individual girls and boys of all ages are found living and working in public spaces, and are visible in the great majority of the world’s urban centers Children are found living on the streets for many reasons, including difficult social situations at home, often cause by parental unemployment, alcoholism, violence and abuse. Families with children are by most accounts among the fastest growing segments of the homeless population. In the United States an estimated 1.35 million from 600 thousand families will experience homelessness today, while 3.8 million more will live in “precarious housing situations.” Put another way, of every 200 children in America, 3 will be homeless today and more than double that number will be at risk for homelessness. Homelessness has a devastating impact on children and youths’ educational opportunities. Residency requirements, guardianship requirements, delays in transfer of school records, lack of transportation, and lack of immunization records often prevent homeless children from enrolling in school. Homeless children and youth who are able to enroll in school still face barriers to regular attendance: while 87% of homeless youth are enrolled in school, only 77% attend school regularly. According to recent federal data, during the 2007-2008 school year 794,617 homeless children and youth were enrolled in public schools. This number, however, is an underestimate, as not all school districts report data to the U.S. Department of Education, and because the data collected represents only those children identified and enrolled in school. Furthermore, the number does not include all preschool-age children, or any infants and toddlers. Living arrangements for homeless children can be highly improvisational. These situations are often precarious, unstable, and, at times, dangerous. Of children who schools identified as homeless during the 2007-2008 school year, 22% lived in shelters, 65% lived with other family members or friends, 7% lived in motels, and 6% lived without shelter. In addition to enrollment problems, the high mobility associated with homelessness has severe educational consequences. Homeless families move frequently due to limits to length of shelter stays, search for safe and affordable housing or employment, or to escape abusive family members. Too often, homeless children have to change schools because shelters or other temporary accommodations are not located within their school district. Homeless children and youth frequently transfer schools multiple times in a single year because of these conditions. Every time a child has to change schools, his or her education is disrupted. According to the Institute for Children and Poverty, homeless children are nine times more likely to repeat a grade, four times more likely to drop out of school, and three times more likely to be placed in special education programs than their housed peers. TOPIC B: CHILDREN IN MERCENARY GROUPS A mercenary is a person who takes part in an armed conflict, who is not a national or a party to the conflict and is "motivated to take part in the hostilities by the desire for private gain. Nowadays most of Mercenary groups use children because is easy to control them and to didn´t catch them There are a lot of mercenary groups that work with kids and most of this groups are principal establish in Africa and Asia. The military use of children takes three distinct forms: children can take direct part in hostilities (child soldiers), or they can be used in support roles such as porters, spies, messengers, look outs; or they can be used for political advantage either as human shields or in propaganda. Throughout history and in many cultures, children have been extensively involved in military campaigns even when such practices were against cultural morals. Since the 1970s, a number of international conventions have come into effect that try to limit the participation of children in armed conflicts, nevertheless the Coalition to Stop the Use of Child Soldiers reports that the use of children in military forces, and the active participation of children in armed conflicts is widespread. As the ICRC commentary on Protocol it makes clear, this is not a complete ban on the use of children in conflict. The ICRC had suggested that the Parties to the conflict should "take all necessary measures", which became in the final text, "take all feasible measures" which is not a total prohibition on their doing so because feasible should be understood as meaning "capable of being done, accomplished or carried out, possible or practicable". Refraining from recruiting children under fifteen does not exclude children who volunteer for armed service. During the negotiations over the clause "take a part in hostilities" the word "direct" was added to it, this opens up the possibility that child volunteers could be involved indirectly in hostilities, gathering and transmitting military information, helping in the transportation of arms and munitions, provision of supplies etc. Forced or compulsory recruitment of anyone under the age of 18 for use in armed conflict, is one of the predefined worst forms of child labour, deemed a form of slavery, in terms of the International Labour Organisation's Worst Forms of Child Labour Convention, 1999, adopted in 1999. In terms of the Worst Forms of Child Labour Recommendation ratifying countries should ensure that forced or compulsory recruitment of children for use in armed conflict is a criminal offence, and also provide for other criminal, civil or administrative remedies to ensure the effective enforcement of such national legislation.