diff --git a/makefiles/git/help.mk b/makefiles/git/help.mk
new file mode 100644
index 0000000..cbd33ee
--- /dev/null
+++ b/makefiles/git/help.mk
@@ -0,0 +1,31 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# Intent: Helper makefile target used to setup for a release
+# -----------------------------------------------------------------------
+
+## ---------------------------------------------------------------------------
+## Intent: Display supported targets
+## ---------------------------------------------------------------------------
+help-onf-git :
+	@echo
+	@echo '[GIT]'
+	@echo '  show-submodules     Display a list of repository submodules and versions'
+
+help ::
+	@echo '  help-onf-git        Display git makefile targets'
+
+# [EOF]
diff --git a/makefiles/git/include.mk b/makefiles/git/include.mk
new file mode 100644
index 0000000..9125178
--- /dev/null
+++ b/makefiles/git/include.mk
@@ -0,0 +1,36 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+##--------------------##
+##---]  INCLUDES  [---##
+##--------------------##
+include $(MAKEDIR)/git/help.mk
+include $(MAKEDIR)/git/required.mk
+
+ifdef USE_ONF_GIT_MK
+  # Dynamic loading when targets are requested by name
+  include $(ONF_MAKE)/git/submodules.mk
+endif
+
+# [EOF]
+
+
diff --git a/makefiles/git/required.mk b/makefiles/git/required.mk
new file mode 100644
index 0000000..29fba88
--- /dev/null
+++ b/makefiles/git/required.mk
@@ -0,0 +1,32 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------
+# Intent: Conditionally load when named targets are requested.
+#   var ?= $(error ...) definitions are fatal to "make help" and others
+# -----------------------------------------------------------------------
+
+git-mk-targets := $(NULL)
+git-mk-targets := show-submodules
+
+# -----------------------------------------------------------------------
+# Define a flag to only load release targets when mentioned by name
+# Makefile can also explicitly define the flag to force always loading.
+# -----------------------------------------------------------------------
+$(foreach tgt,$(git-mk-targets),\
+  $(if $(findstring $(tgt),$(MAKECMDGOALS)),$(eval USE_ONF_GIT_MK := true))\
+)
+
+# [EOF]
diff --git a/makefiles/git/submodules.mk b/makefiles/git/submodules.mk
new file mode 100644
index 0000000..42c2fc2
--- /dev/null
+++ b/makefiles/git/submodules.mk
@@ -0,0 +1,57 @@
+# -*- makefile -*-
+# -----------------------------------------------------------------------
+# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-FileCopyrightText: 2022 Open Networking Foundation (ONF) and the ONF Contributors
+# SPDX-License-Identifier: Apache-2.0
+# -----------------------------------------------------------------------
+
+$(if $(DEBUG),$(warning ENTER))
+
+show-submodules:
+
+	$(HIDE)cat .gitmodules
+
+	@echo
+	$(HIDE) git submodule
+
+$(if $(DEBUG),$(warning LEAVE))
+
+# https://github.com/lfit/releng-global-jjb/tags
+# git checkout v0.86.7
+# [crucible:global-jjb] git checkout v0.86.7
+# Previous HEAD position was 5dc3432 Update regexp in lf-infra-ship-logs macro
+# HEAD is now at c5bd1d3 Fix: Pin urllib3~=1.26.15 in pypi dist jobs
+
+# 5dc3432cae2f13d9e5151a00a76a78ce73d92d70 global-jjb (v0.53.3)
+# 0d88f8b7a24b53b1c3e189e30ab94373c51eea91 lf-ansible (0d88f8b)
+# 4a5b0cd9032938194c4813fe36663ddee4f9e60e packer/common-packer (v0.1.0~22)
+
+# https://stackoverflow.com/questions/30301510/git-submodule-specify-version
+# cd global-jjb
+# git checkout v0.86.7
+# cd -
+# git commit . -m "use submodule v0.86.7"
+
+# https://github.com/lfit/releng-lf-ansible.git
+# tag==master, no release
+
+# https://github.com/lfit/releng-common-packer.git
+# cd packer/common-packer
+# git checkout v0.12.1
+# cd -
+# git commit . -m "use submodule v0.12.1""
+
+# [EOF]