diff --git a/src/gitGraphView.ts b/src/gitGraphView.ts
index dcff538b..5e1543fa 100644
--- a/src/gitGraphView.ts
+++ b/src/gitGraphView.ts
@@ -294,10 +294,18 @@ export class GitGraphView extends Disposable {
 				break;
 			case 'deleteBranch':
 				errorInfos = [await this.dataSource.deleteBranch(msg.repo, msg.branchName, msg.forceDelete)];
-				for (let i = 0; i < msg.deleteOnRemotes.length; i++) {
-					errorInfos.push(await this.dataSource.deleteRemoteBranch(msg.repo, msg.branchName, msg.deleteOnRemotes[i]));
+				if (errorInfos[0] === null) {
+					for (let i = 0; i < msg.deleteOnRemotes.length; i++) {
+						errorInfos.push(await this.dataSource.deleteRemoteBranch(msg.repo, msg.branchName, msg.deleteOnRemotes[i]));
+					}
 				}
-				this.sendMessage({ command: 'deleteBranch', errors: errorInfos });
+				this.sendMessage({
+					command: 'deleteBranch',
+					repo: msg.repo,
+					branchName: msg.branchName,
+					deleteOnRemotes: msg.deleteOnRemotes,
+					errors: errorInfos
+				});
 				break;
 			case 'deleteRemote':
 				this.sendMessage({
diff --git a/src/types.ts b/src/types.ts
index e7c82c2a..b4d2a90b 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -713,6 +713,9 @@ export interface RequestDeleteBranch extends RepoRequest {
 }
 export interface ResponseDeleteBranch extends ResponseWithMultiErrorInfo {
 	readonly command: 'deleteBranch';
+	readonly repo: string;
+	readonly branchName: string;
+	readonly deleteOnRemotes: ReadonlyArray<string>;
 }
 
 export interface RequestDeleteRemote extends RepoRequest {
diff --git a/web/main.ts b/web/main.ts
index e6ac997e..16e22dc5 100644
--- a/web/main.ts
+++ b/web/main.ts
@@ -934,7 +934,7 @@ class GitGraphView {
 							value: false
 						});
 					}
-					dialog.showForm('Are you sure you want to delete the branch <b><i>' + escapeHtml(refName) + '</i></b>?', inputs, 'Delete Branch', (values) => {
+					dialog.showForm('Are you sure you want to delete the branch <b><i>' + escapeHtml(refName) + '</i></b>?', inputs, 'Yes, delete', (values) => {
 						runAction({ command: 'deleteBranch', repo: this.currentRepo, branchName: refName, forceDelete: <boolean>values[0], deleteOnRemotes: remotesWithBranch.length > 0 && <boolean>values[1] ? remotesWithBranch : [] }, 'Deleting Branch');
 					}, target);
 				}
@@ -2889,7 +2889,7 @@ window.addEventListener('load', () => {
 				}, true);
 				break;
 			case 'deleteBranch':
-				refreshAndDisplayErrors(msg.errors, 'Unable to Delete Branch');
+				handleResponseDeleteBranch(msg);
 				break;
 			case 'deleteRemote':
 				refreshOrDisplayError(msg.error, 'Unable to Delete Remote');
@@ -3032,6 +3032,16 @@ window.addEventListener('load', () => {
 		}
 	});
 
+	function handleResponseDeleteBranch(msg: GG.ResponseDeleteBranch) {
+		if (msg.errors.length > 0 && msg.errors[0] !== null && msg.errors[0].includes('git branch -D')) {
+			dialog.showConfirmation('The branch <b><i>' + escapeHtml(msg.branchName) + '</i></b> is not fully merged. Would you like to force delete it?', 'Yes, force delete branch', () => {
+				runAction({ command: 'deleteBranch', repo: msg.repo, branchName: msg.branchName, forceDelete: true, deleteOnRemotes: msg.deleteOnRemotes }, 'Deleting Branch');
+			}, { type: TargetType.Repo });
+		} else {
+			refreshAndDisplayErrors(msg.errors, 'Unable to Delete Branch');
+		}
+	}
+
 	function refreshOrDisplayError(error: GG.ErrorInfo, errorMessage: string) {
 		if (error === null) {
 			gitGraph.refresh(false);