The presidents of several Central European countries gathered in the town of Castolovice on Thursday in a sign of solidarity during the current flood crisis. Czech President Vaclav Havel received pledges of support and emergency aid from Hungarian President Ferenc Madl and Polish President Alexander Kwasniewski. Slovakia's Rudolf Schuster was unable to attend due to illness. The Visegrad group, consisting of the Czech Republic, Slovakia, Hungary and Poland, was formed ten years ago to promote co-operation among the four former Communist countries. Each is currently a leading candidate for the European Union, and Slovakia may join the other three in the NATO alliance this year.