War relics along railroad Croatia

[vdongen]

During our visit in Croatia, Yugoslavia in the past, we found these relics along the railroad. Does anybody know what these objects are?

Greetings, Bart

[Anderson]

They appear to be "pill boxes", possibly dating from the second world war and related to securing the railway from partisan attacks.

[Martin Bull]

I think Anderson is correct. They look to be hurriedly erected and not of the strongest construction - I have seen similar ones on the German 'Trasimeno Line' in Tuscany. They would be effective against small arms fire.