diff --git a/frontend/src/app/components/global-action-modal/global-action-modal.component.html b/frontend/src/app/components/global-action-modal/global-action-modal.component.html
new file mode 100644
index 0000000..47eb934
--- /dev/null
+++ b/frontend/src/app/components/global-action-modal/global-action-modal.component.html
@@ -0,0 +1,31 @@
+<!-- Backdrop overlay — click to dismiss -->
+<div class="global-action-modal__backdrop" #backdrop (click)="onBackdropClick()"></div>
+
+<!-- Modal panel -->
+<div class="global-action-modal__panel" (click)="onModalClick($event)" role="dialog" aria-modal="true" aria-label="Global Actions">
+
+  <!-- Header -->
+  <div class="global-action-modal__header">
+    <h2 class="global-action-modal__title">Global Actions</h2>
+    <button matIconButton
+            class="global-action-modal__close"
+            aria-label="Close modal"
+            (click)="onClose()">
+      <mat-icon>close</mat-icon>
+    </button>
+  </div>
+
+  <!-- Action grid -->
+  <div class="global-action-modal__actions">
+    @for (action of actions; track action.key) {
+      <button class="global-action-modal__action-btn global-action-modal__action-btn--{{ action.color }}"
+              (click)="onAction(action)">
+        <div class="global-action-modal__action-icon">
+          <mat-icon>{{ action.icon }}</mat-icon>
+        </div>
+        <span class="global-action-modal__action-label">{{ action.label }}</span>
+        <span class="global-action-modal__action-desc">{{ action.description }}</span>
+      </button>
+    }
+  </div>
+</div>
\ No newline at end of file
diff --git a/frontend/src/app/components/global-action-modal/global-action-modal.component.scss b/frontend/src/app/components/global-action-modal/global-action-modal.component.scss
new file mode 100644
index 0000000..fce6731
--- /dev/null
+++ b/frontend/src/app/components/global-action-modal/global-action-modal.component.scss
@@ -0,0 +1,198 @@
+// ============================================================================
+// Global Action Modal — Tactical Dark Mode Styling
+// Uses Control Center design tokens from styles.scss
+// ============================================================================
+
+// ---------------------------------------------------------------------------
+// Backdrop
+// ---------------------------------------------------------------------------
+:host {
+  display: block;
+  position: fixed;
+  inset: 0;
+  z-index: 1000;
+}
+
+.global-action-modal__backdrop {
+  position: absolute;
+  inset: 0;
+  background: rgba(0, 0, 0, 0.6);
+  backdrop-filter: blur(4px);
+}
+
+// ---------------------------------------------------------------------------
+// Modal Panel
+// ---------------------------------------------------------------------------
+.global-action-modal__panel {
+  position: absolute;
+  top: 50%;
+  left: 50%;
+  transform: translate(-50%, -50%);
+  width: min(560px, calc(100vw - 48px));
+  background: var(--cc-surface-container);
+  border: 1px solid var(--cc-outline);
+  border-radius: var(--cc-card-border-radius);
+  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
+  overflow: hidden;
+}
+
+// ---------------------------------------------------------------------------
+// Header
+// ---------------------------------------------------------------------------
+.global-action-modal__header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 20px 24px 12px;
+}
+
+.global-action-modal__title {
+  margin: 0;
+  font-size: 20px;
+  font-weight: 600;
+  color: var(--cc-on-surface);
+  letter-spacing: 0.01em;
+}
+
+.global-action-modal__close {
+  --mat-icon-button-state-layer-color: transparent;
+  color: var(--cc-on-surface-variant);
+
+  &:hover {
+    color: var(--cc-on-surface);
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Action Grid
+// ---------------------------------------------------------------------------
+.global-action-modal__actions {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 12px;
+  padding: 12px 24px 24px;
+}
+
+// ---------------------------------------------------------------------------
+// Action Button
+// ---------------------------------------------------------------------------
+.global-action-modal__action-btn {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 8px;
+  padding: 20px 16px;
+  border: 1px solid var(--cc-outline);
+  border-radius: 12px;
+  background: var(--cc-surface);
+  color: var(--cc-on-surface);
+  cursor: pointer;
+  transition: background 150ms ease, border-color 150ms ease, transform 100ms ease;
+  font-family: inherit;
+  text-align: center;
+
+  &:hover {
+    background: var(--cc-surface-container-high);
+    border-color: var(--cc-on-surface-variant);
+    transform: translateY(-1px);
+  }
+
+  &:active {
+    transform: translateY(0);
+  }
+
+  &:focus-visible {
+    outline: 2px solid var(--mat-sys-primary, #38BDF8);
+    outline-offset: 2px;
+  }
+}
+
+// Action icon wrapper
+.global-action-modal__action-icon {
+  width: 48px;
+  height: 48px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border-radius: 12px;
+
+  .mat-icon {
+    width: 28px;
+    height: 28px;
+    font-size: 28px;
+  }
+}
+
+// Action label
+.global-action-modal__action-label {
+  font-size: 15px;
+  font-weight: 600;
+  letter-spacing: 0.01em;
+}
+
+// Action description
+.global-action-modal__action-desc {
+  font-size: 12px;
+  color: var(--cc-on-surface-variant);
+  line-height: 1.4;
+}
+
+// ---------------------------------------------------------------------------
+// Color Variants — per-action accent colors
+// ---------------------------------------------------------------------------
+.global-action-modal__action-btn--deploy {
+  .global-action-modal__action-icon {
+    background: var(--status-active-bg);
+    color: var(--status-active);
+  }
+
+  &:hover {
+    border-color: var(--status-active);
+  }
+}
+
+.global-action-modal__action-btn--pause {
+  .global-action-modal__action-icon {
+    background: var(--status-idle-bg);
+    color: var(--status-idle);
+  }
+
+  &:hover {
+    border-color: var(--status-idle);
+  }
+}
+
+.global-action-modal__action-btn--emergency {
+  .global-action-modal__action-icon {
+    background: var(--status-error-bg);
+    color: var(--status-error);
+  }
+
+  &:hover {
+    border-color: var(--status-error);
+  }
+
+  .global-action-modal__action-label {
+    color: var(--status-error);
+  }
+}
+
+.global-action-modal__action-btn--add {
+  .global-action-modal__action-icon {
+    background: var(--status-thinking-bg);
+    color: var(--status-thinking);
+  }
+
+  &:hover {
+    border-color: var(--status-thinking);
+  }
+}
+
+// ---------------------------------------------------------------------------
+// Responsive — stack single column on narrow viewports
+// ---------------------------------------------------------------------------
+@media (max-width: 400px) {
+  .global-action-modal__actions {
+    grid-template-columns: 1fr;
+  }
+}
\ No newline at end of file
diff --git a/frontend/src/app/components/global-action-modal/global-action-modal.component.ts b/frontend/src/app/components/global-action-modal/global-action-modal.component.ts
new file mode 100644
index 0000000..dc36fa2
--- /dev/null
+++ b/frontend/src/app/components/global-action-modal/global-action-modal.component.ts
@@ -0,0 +1,87 @@
+import { ChangeDetectionStrategy, Component, ElementRef, EventEmitter, Output, ViewChild } from '@angular/core';
+import { MatIconModule } from '@angular/material/icon';
+import { MatButtonModule } from '@angular/material/button';
+
+/**
+ * Global Action Modal — overlay for fleet-wide commands.
+ *
+ * Four main actions: Deploy All, Pause All, Emergency Stop, Add Agent.
+ * Tactical Dark Mode styling using Control Center design tokens.
+ * Dismisses on backdrop click or close button.
+ */
+@Component({
+  selector: 'app-global-action-modal',
+  standalone: true,
+  imports: [MatIconModule, MatButtonModule],
+  templateUrl: './global-action-modal.component.html',
+  styleUrl: './global-action-modal.component.scss',
+  changeDetection: ChangeDetectionStrategy.OnPush,
+})
+export class GlobalActionModalComponent {
+  /** Emitted when any action button is clicked. Payload is the action key. */
+  @Output() readonly actionSelected = new EventEmitter<GlobalAction>();
+
+  /** Emitted when the modal is dismissed (backdrop click or close button). */
+  @Output() readonly dismissed = new EventEmitter<void>();
+
+  @ViewChild('backdrop') backdropEl!: ElementRef<HTMLElement>;
+
+  /** All available global actions. */
+  readonly actions: GlobalActionDef[] = [
+    {
+      key: 'deploy-all',
+      label: 'Deploy All',
+      description: 'Deploy all agents in the fleet',
+      icon: 'rocket_launch',
+      color: 'deploy',
+    },
+    {
+      key: 'pause-all',
+      label: 'Pause All',
+      description: 'Pause all running agents',
+      icon: 'pause_circle',
+      color: 'pause',
+    },
+    {
+      key: 'emergency-stop',
+      label: 'Emergency Stop',
+      description: 'Immediately halt all agents',
+      icon: 'emergency',
+      color: 'emergency',
+    },
+    {
+      key: 'add-agent',
+      label: 'Add Agent',
+      description: 'Register a new agent to the fleet',
+      icon: 'person_add',
+      color: 'add',
+    },
+  ];
+
+  onBackdropClick(): void {
+    this.dismissed.emit();
+  }
+
+  onModalClick(event: Event): void {
+    // Prevent clicks inside the modal panel from closing it
+    event.stopPropagation();
+  }
+
+  onClose(): void {
+    this.dismissed.emit();
+  }
+
+  onAction(action: GlobalActionDef): void {
+    this.actionSelected.emit(action.key);
+  }
+}
+
+export type GlobalAction = 'deploy-all' | 'pause-all' | 'emergency-stop' | 'add-agent';
+
+export interface GlobalActionDef {
+  key: GlobalAction;
+  label: string;
+  description: string;
+  icon: string;
+  color: 'deploy' | 'pause' | 'emergency' | 'add';
+}
\ No newline at end of file