The dramatic rise in overseas travel and expatriate work by Chinese was punctuated by the recent kidnappings of Chinese workers in Sudan and Egypt. "Overseas Chinese protection" (haiwai gongmin baohu) has been a critical priority since deadly attacks killed 14 Chinese workers in Afghanistan and Pakistan in 2004. Between 2006 and 2010, 6,000 Chinese citizens were evacuated to China from upheavals in the Solomon Islands, East Timor, Lebanon, Tonga, Chad, Thailand, Haiti and Kyrgyzstan.