Complex sentence: Since the end of the cold war, Germany and Russia rebuilt their "Strategic Partnership" which bonded the two countries.both coutries have very painful history but after the cold war period and re-unification of germany given new boost up in between each other.
Split into simpler sentences: Since the end of the cold war, Germany and Russia rebuilt their "Strategic Partnership" which bonded the two countries. Both coutries have very painful history but after the cold war period and re-unification of germany given new boost up in between each other.