with their staves, a traditional but deprecated item. The leather straps and toggles of the campaign hats or Leaders' Wood Badges could be used as emergency tourniquets, or anywhere that string was needed in a hurry. Neckerchiefs were chosen as they could easily be used as a sling or triangular bandage by a Scout in need. Scouts were encouraged to use their garters for shock cord where necessary. Distinctive insignia for all are Scout uniforms, recognized and worn the world over, include the Wood Badge and the World Membership Badge. Scouting has two internationally known symbols: the trefoil is used by members of the World Association of Girl Guides and Girl Scouts (WAGGGS) and the fleur-de-lis by member organizations of the WOSM and most other Scouting organizations. The swastika was used as an early symbol by the Boy Scouts Association of the United Kingdom and others. Its earliest use in Scouting was on the Thanks Badge introduced in 1911. Lord Baden-Powell's 1922 design for the Medal of Merit added a swastika to the Scout Arrowhead to symbolize good luck for the recipient. In 1934, Scouters requested a change to the design because of the connection of the swastika with its more recent use by the German National Socialist Workers (Nazi) Party. A new Medal of Merit was issued by the Boy Scouts Association in 1935. Age groups and sections Scouting and Guiding movements are generally divided into sections by age or school grade, allowing activities to be tailored to the maturity of the group's members. These age divisions have varied over time as they adapt to the local culture and environment. Scouting was originally developed for adolescents—youths between the ages of 11 and 17. In most member organizations, this age group composes the Scout or Guide section. Programs were developed to meet the needs of young children (generally ages 6 to 10) and young adults (originally 18 and older, and later up to 25). Scouts and Guides were later split into "junior" and "senior" sections in many member organizations, and some organizations dropped the young adults' section. The exact age ranges for programs vary by country and association. The national programs for younger children include Tiger Cubs, Cub Scouts, Brownies, Daisies, Rainbow Guides, Beaver Scouts, Joey Scouts, Keas, and Teddies. Programs for post-adolescents and young adults include the Senior Section, Rover Scouts, Senior Scouts, Venture Scouts, Explorer Scouts, and the