1. In the Second World War he advised the RAF on gas warfare . 2. This officer should be experienced in the practical use of gas warfare . 3. Officials said a military poison gas warfare unit was sent to the area. 4. It is the ultimate in gas warfare : The stench pours through the pores. 5. Defense Agency officials said a military poison gas warfare unit was being sent to the area. 6. This is the earliest evidence of gas warfare . 7. A military poison gas warfare unit was sent to the area, and prepared to spray neutralizing chemicals. 8. Then and now, the phrase included nuclear bombs but was directed mainly at germ and poison-gas warfare . 9. A military poison gas warfare unit was sent to the area and prepared to spray neutralizing chemicals. 10. {{ quote | As a gas warfare instrument the material would . . . be inhaled by personnel.
