Sean Penn on Prince William in the Falklands © Reuters/ Andres Stapff Actor Sean Penn has accused the United Kingdom of insensitivity for sending Prince William to the Falklands. Speaking in Uruguay, Penn said: "It's unthinkable that the United Kingdom can make a conscious decision to deploy a prince within the military to the Malvinas, knowing the great emotional sensitivity both of mothers and fathers in the United Kingdom and in Argentina who lost sons and daughters in a war of islands." The double Oscar winner repeated the claim he made in Argentina on Monday that Britain's position over the Falkland was "colonialist, ludicrous and archaic." Prince William is on routine deployment to the islands. He will stay for six weeks in his role as an RAF search-and-rescue helicopter pilot.