sentences:  Since it first met in 2004, the PSC has been active in relation to the crises in Darfur, Comoros, Somalia, Democratic Republic of Congo, Burundi, Côte d'Ivoire and other countries.It has adopted resolutions creating the AU peacekeeping operations in Somalia and Darfur, and imposing sanctions against persons undermining peace and security (such as travel bans and asset freezes against the leaders of the rebellion in Comoros).The council is in the process of overseeing the establishment of a "standby force" to serve as a permanent African peacekeeping force.