Joram Rozov, Israel
The type of imagery in this poster from Israel is a pile of sand bags that are generally used to hide behind in war zones. There is not much color included besides tans and browns. This could be the case because there is not much color in the israeli culture, along with the fact that the sand bags are all just one solid color. Adding more color wouldn't enhance the poster in anyway.
I could see the message being conveyed in this poster being seen the same way in the US. However, i could see some people thinking more of coming together in floods and helping with creating sand bag dams as well as war issues.
There definitely not more humor in this design. It seems like a lot of American posters about war try to make it more humorous in order to cut the tension, whereas this one is simply to the point.
One of the cultural influences shown in this design is that there are probably a lot of these bags piled up in that part of the world since it seems like there have been a lot of wars in the region. the people of that area will probably be able to take a look at this poster and know exactly what it is referring to. Also i am pretty sure many Israeli people read right to left so it is fitting that the text is written that way.