what if someone publish some pictures to the web (some web sites or facebook account) if these pictures does not belong

[Selim]

hello everyone, i like to take pictures. (nature pictures, people around the world). And then i publish these pictures to the internet (facebook account and some blog web sites).

i would like to emphasize again. These pictures are taken by me or my friends. but these pictures are not my pictures, i mean some of them are nature pictures, some of them are some people around the world. i dont know these people. just saw them and took their pictures.
By the way, there is no any license or some another thing about these pictures on my side.

someone gets my pictures and put on facebook account and some websites. i think he/she is from another country.
my question is, is there any way to prevent this person not to share my pictures on the internet? or any idea about under protection for these pictures?

thanks,
selcuk