now that i have made a trip on the internet i can see that it is a Panzerhaubitze 2000 (155 mm Self Proppeled Gun)
Lol, u guys are good. I had already looked at about 100 tanks, but i never imagined it could be a self propelled gun... Thank you very mucho
It seems that it can't be seen anymore, but that can be helped. Here's another picture of the same weapon:
although the pattern is that of the german army I have found this web site. http://homepage.eircom.net/~steven/italian_army.htm the title of the pic is PZH!A which again would appear to be german maybe the italians have bought it from them.
Another unknown (not a tank, but hey) this pic featured in a BBC news article about a failed coup in the Democratic Republic of Congo, and presumably belongs to the government. It looks a bit like one of the Phirana family, but I'm not sure.