Joint Task Force Afghanistan personnel from the 2nd Battalion Royal Canadian Regiment Battle Group's, Tactical Unmanned Aerial Vehicle (TUAV) Detachment perform final checks prior to launch of the Spewer CU161 UAV at the Kandahar Air Field. About 2,500 members of the Canadian forces (CF) are currently serving as part of Joint Task Force Afghanistan (JTF AFG). They play a key role in the NATO-led International Security Assistance Force (ISAF) mission whose goal is to improve the security situation in Afghanistan and assist in rebuilding the country. Canada is in Afghanistan at the request of the democratically elected government, along with 36 other nations, and as part of a UN-sanctioned mission to help build a stable, democratic, and self-sufficient society.