Across
- 2. children who were sent away for their safety
- 5. countries who join forces in war
- 7. muscular walled tubes that transport blood from the heart
- 9. when countries or large groups use weapons to fight each other
Down
- 1. activity requiring physical effort
- 3. opposing countries in a war
- 4. a hollow muscular organ that pumps the blood through the circulatory system
- 6. tubes forming part of the blood circulation system of the body
- 8. royal air force