The ruins of these fortifications, many of them well preserved, can be found today in Lithuania, Poland, Belarus and Ukraine. The modern borders are somewhat different from the borders in 1941, and hence some sections of the line do not lie in border zones and are easily accessible. On the other hand, other sections do lie right along the modern Polish-Ukrainian, Polish-Belarusian and Lithuanian-Russian borders, so access to them may still be restricted for reasons of border security.