There is also the Citizen Army Training, a basic military education and training program similar to the Reserve Officers' Training Corps for college students. As in conscription and ROTC, the program is not mandatory. Russia In Russia, in the end of ninth grade students have a choice: to progress to the tenth grade in school or go to college. The tenth grade is the beginning of the high school, and it is a pre-exam year, when training to USE is being. Learning is similar with Ninth grade, but priority is given to repeat the material learned in high school (Fifth to Ninth years). Singapore In Singapore, 10th grade is equivalent of Secondary 4 level. Students are usually 16 years old and will take either the GCE 'N' Levels or the GCE 'O' Levels at the end of the year. South Africa In South Africa, ninth grade marks the end of a student's General Education and Training-phase. Children in South Africa are required to attend school up to the age of fifteen, or completion of the General Education and Training-phase, whichever comes first. Students have the option of continuing secondary school up to twelfth grade, under Further Education and Training. If they elect to do this, in Grade 10 they have to choose 7 subjects including: 2 languages (one at Home Language level and one at Additional language level), Mathematics or Mathematical Literacy, Life Orientation (which is compulsory) and 3 more elective subjects which differ according to the school the student is enrolled at. Upon successful completion of the twelfth grade, students are granted the National Senior Certificate. Spain In Spain, the tenth grade is 4th of E.S.O. (Obligatory Secondary Education, in Spanish "Educación Secundaria Obligatoria"). Sweden In Sweden, the tenth to twelfth grades are taken at a certain type of school called a 'Gymnasium'. After ninth grade, Swedish children end their compulsory schooling. Therefore, these schools are significantly divided in terms of both abilities and career aims. There are two overall types of programs (courses of study) that students can choose from at their schools. Each one is taught in its own separate place. Job-oriented programs (yrkesförberedande program) and programs that prepare for university college (högskoleförberedande program). There are then several programmes of the two types; for example the natural science program (naturvetenskapsprogrammet), which prepares for university college and focuses on subjects like physics, chemistry, biology and math or the