WORD SPIRAL

Starting from 1, fill in the grid clockwise with four-letter words. The last letter of each word becomes the first letter of the next to reveal a military term.

1. Wooden shoe 2. Football match 3. Gaelic 4. Jealousy 5. Spun thread 6. Shipshape 7. Stumble 8. Sit for an artist 9. Public school

10. Immediately following 11. Sepulchre 12. Party, slang 13. Group of cattle 14. Business transaction 15. Girl 16. Black marketeer