diff --git a/google/cloud/tpu/v2alpha1/cloud_tpu.proto b/google/cloud/tpu/v2alpha1/cloud_tpu.proto
index 54af59170..71b88386b 100644
--- a/google/cloud/tpu/v2alpha1/cloud_tpu.proto
+++ b/google/cloud/tpu/v2alpha1/cloud_tpu.proto
@@ -525,6 +525,9 @@ message Node {
 
   // Shielded Instance options.
   ShieldedInstanceConfig shielded_instance_config = 45;
+
+  // Output only. Whether the Node belongs to a Multislice group.
+  bool multislice_node = 47 [(google.api.field_behavior) = OUTPUT_ONLY];
 }
 
 // A QueuedResource represents a request for resources that will be placed
@@ -912,6 +915,13 @@ message DeleteQueuedResourceRequest {
 
   // Idempotent request UUID.
   string request_id = 2;
+
+  // If set to true, all running nodes belonging to this queued resource will
+  // be deleted first and then the queued resource will be deleted.
+  // Otherwise (i.e. force=false), the queued resource will only be deleted if
+  // its nodes have already been deleted or the queued resource is in the
+  // ACCEPTED, FAILED, or SUSPENDED state.
+  bool force = 3;
 }
 
 // The per-product per-project service identity for Cloud TPU service.