Understanding solidarity with political prisoners

Today, the Palestinian Prisoners’ Club announced that the total number of known Palestinian prisoners has risen to 11,100. This includes 3,577 administrative detainees, who are held indefinitely and without charge, 2,662 detainees classified as “unlawful combatants”, and 400 children. I note these are the total number of known prisoners because it is not known how many Palestinians from Gaza have been abducted and continue to be held in Israeli army camps.