Complex sentence: Later on March 16, as many as four MiG-21 fighter jets landed at Benghazi airport and joined the rebel forces; however, one of the MiG-21s crashed near Benina airport on the following day.
Split into simpler sentences: Later on March 16, up to four MiG-21 fighter jets landed at Benghazi airport and joined the rebel forces. One of the MiG-21 crashed near Benina airport on the following day.