Complex sentence: Meanwhile Condoleezza Rice representing the USA at the Liberia partners forum 2007, announces a cancellation of the $391 million debt, this becomes the most monumental achievement of Johnson-Sirleaf's first year in office.
Split into simpler sentences: Meanwhile Condoleezza Rice representing the USA at the Liberia partners forum 2007, announces a cancellation of the $391 million debt. This becomes the most important achievement of Johnson-Sirleaf's first year in office.