Complex sentence: In March 2004, heavy fighting broke out at Azam Warsak, near the South Waziristan town of Wana, where Pakistani government troops faced an estimated 400 militants holed up in several fortified settlements.
Split into simpler sentences: In March 2004, heavy fighting broke out at Azam Warsak, near the South Waziristan town of Wana. Pakistani troops faced an estimated 400 militants holed up in several fortified settlements.