Simplify the following text for a Grade 10 native English-speaking person.
Original: The HIAG ( Hilfsgemeinschaft auf Gegenseitigkeit der AngehÃ rigen der ehemaligen Waffen-SS , literally `` Mutual Help Association of Former Waffen-SS Members '' ) was an organization founded in 1951 by former members of the Waffen-SS to provide assistance to veterans , and campaign for the rehabilitation of their legal status with respect to veterans ' pensions .
Simplified: In 1951 , the Hilfsgemeinschaft auf Gegenseitigkeit der ehemaligen AngehÃ rigen der Waffen-SS was founded , in Germany . This translates to Mutual support organization of former members of the Waffen-SS ' .