President of Poland Andrzej Duda departed on Monday afternoon for the Romanian capital Bucharest where he is due to meet with his Romanian counterpart President Klaus Iohannis on Tuesday.
President is due to discuss subjects including Romania's role in the region, the migration and security crisis in Central and Eastern Europe and the Black Sea region, as well as preparations for next year's NATO summit in Warsaw.
On November 4, a larger meeting of Central and Eastern European heads of state will be held, taking in the presidents of Estonia, Latvia, Lithuania, Slovakia, Hungary, Bulgaria and the Czech Republic.
The aforementioned countries, together with Poland, make up NATO's so-called eastern flank, and a joint declaration is due on Wednesday.
It is expected that the CEE leaders will call for greater security guarantees from the west, in the wake of the Ukrainian-Russian crisis.