diff --git a/.planning/ROADMAP.md b/.planning/ROADMAP.md
index 3f60b46..e5f1347 100644
--- a/.planning/ROADMAP.md
+++ b/.planning/ROADMAP.md
@@ -36,7 +36,7 @@
   2. Selecting sites in the toolbar causes all feature tabs to default to those sites when an operation is run
   3. A user can override the global selection on any individual tab without clearing the global state
   4. The global site selection persists across tab switches within the same session
-**Plans:** 2/5 plans executed
+**Plans:** 3/5 plans executed
 Plans:
 - [ ] 06-01-PLAN.md — GlobalSitesChangedMessage + FeatureViewModelBase extension
 - [ ] 06-02-PLAN.md — MainWindowViewModel global selection state + command
@@ -86,7 +86,7 @@ Plans:
 | 3. Storage and File Operations | v1.0 | 8/8 | Complete | 2026-04-02 |
 | 4. Bulk Operations and Provisioning | v1.0 | 10/10 | Complete | 2026-04-03 |
 | 5. Distribution and Hardening | v1.0 | 3/3 | Complete | 2026-04-03 |
-| 6. Global Site Selection | 2/5 | In Progress|  | - |
+| 6. Global Site Selection | 3/5 | In Progress|  | - |
 | 7. User Access Audit | v1.1 | 0/? | Not started | - |
 | 8. Simplified Permissions | v1.1 | 0/? | Not started | - |
 | 9. Storage Visualization | v1.1 | 0/? | Not started | - |
diff --git a/.planning/STATE.md b/.planning/STATE.md
index 21680cc..9b0193d 100644
--- a/.planning/STATE.md
+++ b/.planning/STATE.md
@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: completed
-stopped_at: Completed 06-01-PLAN.md — GlobalSitesChangedMessage and FeatureViewModelBase extension done
-last_updated: "2026-04-07T08:04:57.041Z"
+stopped_at: Completed 06-03-PLAN.md — toolbar Select Sites button, localization keys, and dialog factory wiring done
+last_updated: "2026-04-07T08:08:43.719Z"
 last_activity: 2026-04-07 — Roadmap created (Phases 6-9), 10/10 requirements mapped
 progress:
   total_phases: 4
   completed_phases: 0
   total_plans: 5
-  completed_plans: 2
+  completed_plans: 3
 ---
 
 # Project State
@@ -44,6 +44,7 @@ Phase 6 [ ] → Phase 7 [ ] → Phase 8 [ ] → Phase 9 [ ]
 | Tests | 134 pass / 22 skip | — |
 | Phase 06-global-site-selection P02 | 8 | 1 tasks | 1 files |
 | Phase 06-global-site-selection P01 | 2 | 2 tasks | 3 files |
+| Phase 06-global-site-selection P03 | 2 | 3 tasks | 5 files |
 
 ## Accumulated Context
 
@@ -59,6 +60,8 @@ Decisions are logged in PROJECT.md Key Decisions table.
 - [Phase 06-02]: MainWindowViewModel uses Func<Window>? factory for SitePickerDialog and broadcasts GlobalSitesChangedMessage via WeakReferenceMessenger on collection change
 - [Phase 06-01]: GlobalSitesChangedMessage uses IReadOnlyList<SiteInfo> (snapshot, not ObservableCollection) so receivers cannot mutate sender state
 - [Phase 06-01]: FeatureViewModelBase.OnGlobalSitesReceived (private) updates GlobalSites then calls OnGlobalSitesChanged (protected virtual) — separates storage from derived class hooks
+- [Phase 06-03]: Added using SharepointToolbox.Core.Models to MainWindow.xaml.cs for TenantProfile in SitePickerDialog factory lambda
+- [Phase 06-03]: toolbar.selectSites.tooltipDisabled added to resources but not wired in XAML — WPF Button disabled tooltip requires style trigger (deferred)
 
 ### Pending Todos
 
@@ -70,6 +73,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-04-07T08:04:57.038Z
-Stopped at: Completed 06-01-PLAN.md — GlobalSitesChangedMessage and FeatureViewModelBase extension done
+Last session: 2026-04-07T08:08:43.717Z
+Stopped at: Completed 06-03-PLAN.md — toolbar Select Sites button, localization keys, and dialog factory wiring done
 Resume file: None
diff --git a/.planning/phases/06-global-site-selection/06-03-SUMMARY.md b/.planning/phases/06-global-site-selection/06-03-SUMMARY.md
new file mode 100644
index 0000000..110fc2a
--- /dev/null
+++ b/.planning/phases/06-global-site-selection/06-03-SUMMARY.md
@@ -0,0 +1,117 @@
+---
+phase: 06-global-site-selection
+plan: 03
+subsystem: ui
+tags: [wpf, xaml, toolbar, localization, mvvm, site-picker]
+
+# Dependency graph
+requires:
+  - phase: 06-global-site-selection/06-02
+    provides: OpenGlobalSitePickerCommand, GlobalSitesSelectedLabel, OpenGlobalSitePickerDialog factory property
+  - phase: 06-global-site-selection/06-01
+    provides: SitePickerDialog (dialog already registered in DI)
+provides:
+  - Toolbar button "Select Sites" bound to OpenGlobalSitePickerCommand
+  - Toolbar TextBlock bound to GlobalSitesSelectedLabel for live site count
+  - SitePickerDialog factory wired in MainWindow.xaml.cs
+  - 5 EN localization keys for toolbar.selectSites and toolbar.globalSites
+  - 5 FR localization keys matching EN keys
+  - GlobalSitesSelectedLabel fully localized via TranslationSource
+affects:
+  - 06-04 (no XAML impact; GlobalSitesChangedMessage broadcast already live from 06-02)
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - "TranslationSource.Instance[key] for code-behind label formatting (same as PermissionsViewModel)"
+    - "Func<TenantProfile, SitePickerDialog> DI factory resolved in MainWindow.xaml.cs code-behind"
+    - "XAML binding Path=[toolbar.selectSites] for localized button content and tooltip"
+
+key-files:
+  created: []
+  modified:
+    - SharepointToolbox/Localization/Strings.resx
+    - SharepointToolbox/Localization/Strings.fr.resx
+    - SharepointToolbox/ViewModels/MainWindowViewModel.cs
+    - SharepointToolbox/MainWindow.xaml
+    - SharepointToolbox/MainWindow.xaml.cs
+
+key-decisions:
+  - "Added using SharepointToolbox.Core.Models to MainWindow.xaml.cs for TenantProfile — required by SitePickerDialog factory lambda"
+  - "TextBlock foreground set to Gray to visually distinguish label from action buttons"
+  - "Disabled tooltip (toolbar.selectSites.tooltipDisabled) added to resources for future use; not wired in XAML because WPF Button does not show ToolTip when IsEnabled=false without a style trigger"
+
+patterns-established:
+  - "Global site picker factory pattern in MainWindow.xaml.cs mirrors PermissionsView factory"
+
+requirements-completed:
+  - SITE-01
+
+# Metrics
+duration: 2min
+completed: 2026-04-07
+---
+
+# Phase 06 Plan 03: Toolbar UI, Localization, and Dialog Factory Wiring Summary
+
+**Select Sites button and count label added to MainWindow toolbar; 5 EN + 5 FR localization keys added; GlobalSitesSelectedLabel localized via TranslationSource; SitePickerDialog factory wired in MainWindow code-behind**
+
+## Performance
+
+- **Duration:** ~2 min
+- **Started:** 2026-04-07T08:06:13Z
+- **Completed:** 2026-04-07T08:07:51Z
+- **Tasks:** 3
+- **Files modified:** 5
+
+## Accomplishments
+
+- Added 5 EN and 5 FR localization keys for the global site picker toolbar controls — button label, tooltip, disabled tooltip, count format, and empty state
+- Updated `GlobalSitesSelectedLabel` in `MainWindowViewModel` from hardcoded English strings to `TranslationSource.Instance` lookups — label now switches language with the app
+- Added `<Separator />`, `<Button>` (bound to `OpenGlobalSitePickerCommand`), and `<TextBlock>` (bound to `GlobalSitesSelectedLabel`) to the ToolBar in `MainWindow.xaml`
+- Wired `viewModel.OpenGlobalSitePickerDialog` factory in `MainWindow.xaml.cs` — clicking "Select Sites" now opens `SitePickerDialog` via DI, identical to the `PermissionsView` pattern
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Add EN/FR localization keys** - `185642f` (feat)
+2. **Task 2: Localize GlobalSitesSelectedLabel** - `467a940` (feat)
+3. **Task 3: Toolbar controls + dialog factory wiring** - `45eb531` (feat)
+
+## Files Created/Modified
+
+- `SharepointToolbox/Localization/Strings.resx` - Added 5 toolbar.selectSites / toolbar.globalSites keys (EN)
+- `SharepointToolbox/Localization/Strings.fr.resx` - Added 5 matching FR translations
+- `SharepointToolbox/ViewModels/MainWindowViewModel.cs` - GlobalSitesSelectedLabel now uses TranslationSource.Instance
+- `SharepointToolbox/MainWindow.xaml` - Added Separator + Select Sites Button + count TextBlock to ToolBar
+- `SharepointToolbox/MainWindow.xaml.cs` - Added OpenGlobalSitePickerDialog factory wiring + using SharepointToolbox.Core.Models
+
+## Decisions Made
+
+- Added `using SharepointToolbox.Core.Models` to `MainWindow.xaml.cs` to satisfy `TenantProfile` reference in the factory lambda. This is appropriate — code-behind already imports View and ViewModel namespaces.
+- `toolbar.selectSites.tooltipDisabled` key added to both resource files for completeness, but not wired in XAML. WPF `Button` does not render `ToolTip` when `IsEnabled=false` without a `Style` trigger; adding that trigger was deferred as it was explicitly called out as optional in the plan.
+- `TextBlock` foreground set to `Gray` to provide visual separation from active toolbar buttons.
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Issues Encountered
+
+None. Build succeeded with 0 errors after each task. Two pre-existing warnings (`_hasLocalSiteOverride` field never assigned in `PermissionsViewModel` and `DuplicatesViewModel`) are out of scope for this plan.
+
+## User Setup Required
+
+None.
+
+## Next Phase Readiness
+
+- Toolbar is fully wired: button opens dialog, label updates live, both localized
+- `OpenGlobalSitePickerDialog` factory is live — clicking "Select Sites" while connected to a tenant will open `SitePickerDialog` and populate `GlobalSelectedSites`
+- `WeakReferenceMessenger` broadcasts `GlobalSitesChangedMessage` on every site collection change (from 06-02) — all tab VMs registered in 06-04 will receive updates automatically
+
+---
+*Phase: 06-global-site-selection*
+*Completed: 2026-04-07*