diff --git a/.DS_Store b/.DS_Store
index 340fe96d..60b378a6 100644
Binary files a/.DS_Store and b/.DS_Store differ
diff --git a/components/missions/missions-admin-panel.tsx b/components/missions/missions-admin-panel.tsx
index b63ba8cd..56a55ece 100644
--- a/components/missions/missions-admin-panel.tsx
+++ b/components/missions/missions-admin-panel.tsx
@@ -427,12 +427,37 @@ export function MissionsAdminPanel() {
       }
 
       // Handle file uploads after mission creation if needed
-      if (selectedLogoFile || selectedAttachments.length > 0) {
-        // TODO: Implement file upload handling
-        console.log('Files to be uploaded:', {
-          logo: selectedLogoFile,
-          attachments: selectedAttachments
-        });
+      if (data?.mission?.id && (selectedLogoFile || selectedAttachments.length > 0)) {
+        // Upload logo
+        if (selectedLogoFile) {
+          const result = await import('@/lib/s3').then(mod => mod.uploadMissionFile({
+            missionId: data.mission.id,
+            file: selectedLogoFile,
+            type: 'logo',
+          }));
+          if (!result.success) {
+            toast({
+              title: "Erreur",
+              description: result.error || "Erreur lors de l'upload du logo",
+              variant: "destructive",
+            });
+          }
+        }
+        // Upload attachments
+        for (const file of selectedAttachments) {
+          const result = await import('@/lib/s3').then(mod => mod.uploadMissionFile({
+            missionId: data.mission.id,
+            file,
+            type: 'attachment',
+          }));
+          if (!result.success) {
+            toast({
+              title: "Erreur",
+              description: result.error || `Erreur lors de l'upload du fichier ${file.name}`,
+              variant: "destructive",
+            });
+          }
+        }
       }
 
       toast({
diff --git a/lib/s3.ts b/lib/s3.ts
new file mode 100644
index 00000000..28261fda
--- /dev/null
+++ b/lib/s3.ts
@@ -0,0 +1,27 @@
+export async function uploadMissionFile({
+  missionId,
+  file,
+  type, // 'logo' or 'attachment'
+}: {
+  missionId: string;
+  file: File;
+  type: 'logo' | 'attachment';
+}): Promise<{ success: boolean; data?: any; error?: string }> {
+  const formData = new FormData();
+  formData.append('missionId', missionId);
+  formData.append('type', type);
+  formData.append('file', file);
+
+  const res = await fetch('/api/missions/upload', {
+    method: 'POST',
+    body: formData,
+  });
+
+  if (!res.ok) {
+    const err = await res.json().catch(() => ({}));
+    return { success: false, error: err.error || 'Upload failed' };
+  }
+
+  const data = await res.json();
+  return { success: true, data };
+} 
\ No newline at end of file
diff --git a/logo.png b/logo.png
new file mode 100644
index 00000000..26a8c68e
Binary files /dev/null and b/logo.png differ