These are one of the sets from Through jungle and desert.
As far as I can see, there are no copies of these cards freely available.
If someone has them and is willing to do so, please add them!
The image above is the only one I have found, but it does allow me to make a list.
The first 11 appear in various other sets, so I have made links to them.
That leaves 6 unique ones. Fortunately I found a Polish translation of the text for the cards, which a friend of mine has translated. So you will find my homemade attempts below.
Note: there are actually 20 cards in the set, but 3 are duplicates.
2 Foxhole = Fortify
3 Heat of battle
4 Out of ammo
5 Pull back
9 Return to duty
10 Motorcycle dispatch
11 Sand in the engine
12 Rough ground
15 Rat patrol
16 Armour hull down
17 Make a stand