'In the 2nd battle of Ypres, the Germans used chlorine gas; at the 3rd battle, they introduced this gas'
mustard gas
WWI: In the 2nd battle of Ypres, the Germans used chlorine gas; at the 3rd battle, they introduced this gas
In the 2nd battle of Ypres, the Germans used chlorine gas; at the 3rd battle, they introduced this gas
In the 2nd battle of Ypres, the Germans used chlorine gas; at the 3rd battle, they introduced this gas
WWI
mustard gas
WWI