\documentclass[11pt]{letter}


\pagestyle{empty}

%----------------------- TEXT'S DIMENSION IF YOU USE A4 PAPER ---------
%----------------------- (TO BE REMOUVED OTHERWISE) -------------------


\setlength{\textwidth}{6.0in}
\setlength{\oddsidemargin}{-.0in}
\setlength{\topmargin}{-1.1in}
\setlength{\textheight}{10.7in}


\address{your name\\
your address\\
following of your address\\
end of your address}
\date{place and date} 

\begin{document}
\begin{letter}{M. le Pr\'esident de la R\'epublique du Tchad\\
Pr\'esidence de la R\'epublique\\
N'Djamena\\
{\bf TCHAD}}
\opening{Dear Mr. President,}

On February 3rd., 2008, my colleague Ibni Oumar Mahamat Saleh, mathematics professor at N'Djamena university, and also spokesman of the opposition coalition CPDC, was abducted from his home in N'Djamena. He was an active member of his university and had developed in particular several international partnerships for its students. The mathematical community worldwide had petitioned you in the following months, asking for his fate.\\

On September 3rd., the conclusions of the {\em Commission d'Enqu\^ete sur les \'ev\'enements survenus en R\'epublique du Tchad du 28 janvier au 8 f\'evrier 2008 et leurs cons\'equences}, created by your decree 525/PR/08, April 2nd., 2008, were publicly delivered. They reckon as near certain what was feared for many months : Ibni Saleh's death.

Besides, these conclusions prove that he was indeed abducted by members ``of national Chad Defence and Security forces'', and points out the existence of ``secret jails [...], non-official detention places in which rot prisoners out of every judicial control.'' It is to be feared, in particular after cross-checking with other testimonies, as that of Ngarlejy Yorongar, himself adbucted on the same day, that Ibni Oumar Mahamat Saleh's death took place in one of those jails.\\

Ibni Oumar Mahamat Saleh's abduction was perpetrated by the Chad National Army, so your government knows his fate. So I demand you the truth about this fate. In particular, if the death is confirmed, I ask you to publish officially Saleh's death notice and to take the adequate measures so that the corpse is returned to his family.\\

{\em Explicitly, the conclusions of the Commission reckon that the truth on this case cannot be found without you will}. So I urge you to launch an inquiry, as the {\em Conclusions} do in their {\em Recommandations} part, in order to exactly establish the facts and the responsibilities in this extrajudicial arrest and its following.\\

Eventually, arbitrary detention and lack of refering to a judge contrevene articles 9 and 10 of the Universal Human Rights Declaration, signed by your country. So I ask you to charge the prisoners of the ``secret prisons'' with legal offences and to refer them to some court, or, otherwise, to free them.\\

\closing{Sincerely yours,}
\end{letter}
\end{document}


\begin{document}
\begin{letter}{Mr. John Doe \\ 2345 Jones St. 
      \\ Oakland, CA  91123}
   ...
 \opening{Dear Mr. President,}
bla
\closing
\end{letter}
\end{document}
\noindent %Ci-dessous placez vos noms et adresse
Votre nom\\
Votre adresse (institut ...)\\
Ville\\
{\bf PAYS}\vspace{0.8cm}\\
\hspace*{\fill}
\begin{tabular}{l}
Monsieur le Pr\'esident de la R\'epublique du Tchad\\
Pr\'esidence de la R\'epublique\\
N'Djamena\\
{\bf TCHAD}\vspace{0.8cm}\\
%Ci-dessous placez les lieu et date d'exp\'edition
Lieu, Date\\
\end{tabular}\vspace{0.8cm}\\

On February 3rd., 2008, my colleague Ibni Oumar Mahamat Saleh, mathematics professor at N'Djamena university, and also spokesman of the opposition coalition CPDC, was abducted from his home in N'Djamena. He was an active member of his university and had developed in particular several international partnerships for its students. The mathematical community worldwide had petitioned you in the following months, asking for his fate.\\

On September 3rd., the conclusions of the {\em Commission d'Enqu\^ete sur les \'ev\'enements survenus en R\'epublique du Tchad du 28 janvier au 8 f\'evrier 2008 et leurs cons\'equences}, created by your dedree 525/PR/08, April 2nd., 2008, were publicly delivered. They reckon as near certain what was feared for many months : Ibni Saleh's death.

Besides, these conclusions prove that he was indeed abducted ny members ``of national Chad Defence and Security forces'', and points out the existence of ``secret jails [...], non-official detention places in which rot prisoners out of every judicial control.'' It is to be feared, in particular after cross-checking with other testimonies, as that of Ngarlejy Yorongar, himself adbucted on the same day, that Ibni Oumar Mahamat Saleh's death took place in one of those jails.\\

Ibni Oumar Mahamat Saleh's abduction was perpetrated by the Chad National Army, so your government knows his fate. So I demand you the truth about this fate. In particular, if the death is confirmed, I ask you to publish officially Saleh's death notice and to take the adequate measures so that the corpse is returned to his family.\\

{\em Explicitly, the conclusions of the Commission reckons that the truth cannot be found without you will}. So I urge you to launch an inquiry, as the {\em Concluisons} do in their {\em Recommandations} part, in order to exactly establish the facts and the responsibilities in this extrajudicial arrest and its following.\\

Eventually, arbitrary detention and lack of refering to a juge contreven articles 9 and 10 of the Universal Human Rights Declaration, signed by your country. So I ask you to charge the prisoners of the ``secret prisons'' with legal offences and to refer them to some court, or, otherwise, to free them.\\

Sincerely yours,

 
\end{document}
