4 1 ▁to ▁ 3 ▁September ▁ 1 9 4 5 ). ▁▁ ▁( 2 ) ▁Korean ▁War ▁( 2 7 ▁June ▁ 1 9 5 0 ▁to ▁ 2 7 ▁July ▁ 1 9 5 3 ). ▁▁ ▁( 3 ) ▁Vietnam ▁War ▁and ▁other ▁operations ▁( 2 ▁March ▁ 1 9 6 1 ▁to ▁ 1 0 ▁March ▁ 1 9 9 5 ). ▁ ▁( a ) ▁Vietnam ▁War ▁( 2 ▁March ▁ 1 9 6 1 ▁to ▁ 2 8 ▁March ▁ 1 9 7 3 ) ▁combined ▁with ▁qual ifying ▁service ▁in ▁La os ▁( 1 9 ▁April ▁ 1 9 6 1 ▁to ▁ 6 ▁October ▁ 1 9 6 2 ). ▁ ▁( b ) ▁Domin ican ▁Republic ▁( 2 8 ▁April ▁ 1 9 6 5 ▁to ▁ 1 ▁September ▁ 1 9 6 6 ). ▁▁ ▁( c ) ▁South ▁Korea ▁on ▁the ▁dem il itar ized ▁zone ▁( DM Z ) ▁( 4 ▁January ▁ 1 9 6 9 ▁to ▁ 3 1 ▁March ▁ 1 9 9 4 ). ▁▁ ▁( d ) ▁El ▁Salvador ▁( 1 ▁January ▁ 1 9 8 1 ▁to ▁ 1 ▁February ▁ 1 9 9 2 ). ▁▁ ▁( e ) ▁Gren ada ▁( 2 3 ▁October ▁to ▁ 2 1 ▁November ▁ 1 9 8 3 ). ▁▁ ▁( f ) ▁J oint ▁Security ▁Area , ▁Pan mun j om , ▁South ▁Korea ▁( 2 3 ▁November ▁ 1 9 8 4 ). ▁▁ ▁(